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131021012230 = 2513102101223
BaseRepresentation
bin111101000000101110…
…1011111110100000110
3110112012002011001002121
41322001131133310012
54121312334342410
6140105031000154
712315552141253
oct1720135376406
9415162131077
10131021012230
1150624a44799
122148680905a
13c48058aa94
1464acd2642a
15361c7e59da
hex1e8175fd06

131021012230 has 8 divisors (see below), whose sum is σ = 235837822032. Its totient is φ = 52408404888.

The previous prime is 131021012219. The next prime is 131021012249. The reversal of 131021012230 is 32210120131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6551050602 + ... + 6551050621.

It is an arithmetic number, because the mean of its divisors is an integer number (29479727754).

Almost surely, 2131021012230 is an apocalyptic number.

131021012230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131021012230 is a deficient number, since it is larger than the sum of its proper divisors (104816809802).

131021012230 is a wasteful number, since it uses less digits than its factorization.

131021012230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13102101230.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131021012230 its reverse (32210120131), we get a palindrome (163231132361).

The spelling of 131021012230 in words is "one hundred thirty-one billion, twenty-one million, twelve thousand, two hundred thirty".

Divisors: 1 2 5 10 13102101223 26204202446 65510506115 131021012230