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131012310030 = 23571567398129
BaseRepresentation
bin111101000000011110…
…0010011010000001110
3110112011110202220220220
41322000330103100032
54121303122410110
6140104120252210
712315415155360
oct1720074232016
9415143686826
10131012310030
1150620040698
1221483911066
13c47b831b54
1464abadcd30
15361bb77370
hex1e80f1340e

131012310030 has 64 divisors (see below), whose sum is σ = 359578275840. Its totient is φ = 29926485504.

The previous prime is 131012310029. The next prime is 131012310031. The reversal of 131012310030 is 30013210131.

It is an interprime number because it is at equal distance from previous prime (131012310029) and next prime (131012310031).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 131012309991 and 131012310009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012310031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130006 + ... + 528134.

It is an arithmetic number, because the mean of its divisors is an integer number (5618410560).

Almost surely, 2131012310030 is an apocalyptic number.

131012310030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131012310030 is an abundant number, since it is smaller than the sum of its proper divisors (228565965810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131012310030 is a wasteful number, since it uses less digits than its factorization.

131012310030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399713.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 131012310030 its reverse (30013210131), we get a palindrome (161025520161).

The spelling of 131012310030 in words is "one hundred thirty-one billion, twelve million, three hundred ten thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 1567 3134 4701 7835 9402 10969 15670 21938 23505 32907 47010 54845 65814 109690 164535 329070 398129 796258 1194387 1990645 2388774 2786903 3981290 5573806 5971935 8360709 11943870 13934515 16721418 27869030 41803545 83607090 623868143 1247736286 1871604429 3119340715 3743208858 4367077001 6238681430 8734154002 9358022145 13101231003 18716044290 21835385005 26202462006 43670770010 65506155015 131012310030