Search a number
-
+
131003010123 = 31725728135569
BaseRepresentation
bin111101000000001100…
…0110100110001001011
3110112010211021102211220
41322000120310301023
54121243232310443
6140103145053123
712315243133056
oct1720030646113
9415124242756
10131003010123
1150615869517
12214807871a3
13c479926b4b
1464aa79ba9d
15361ae3ba83
hex1e80634c4b

131003010123 has 32 divisors (see below), whose sum is σ = 186331026240. Its totient is φ = 81584455680.

The previous prime is 131003010121. The next prime is 131003010137. The reversal of 131003010123 is 321010300131.

It is not a de Polignac number, because 131003010123 - 21 = 131003010121 is a prime.

It is a super-2 number, since 2×1310030101232 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131003010121) 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, 3665283 + ... + 3700851.

It is an arithmetic number, because the mean of its divisors is an integer number (5822844570).

Almost surely, 2131003010123 is an apocalyptic number.

131003010123 is a deficient number, since it is larger than the sum of its proper divisors (55328016117).

131003010123 is a wasteful number, since it uses less digits than its factorization.

131003010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36127.

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

Adding to 131003010123 its reverse (321010300131), we get a palindrome (452013310254).

The spelling of 131003010123 in words is "one hundred thirty-one billion, three million, ten thousand, one hundred twenty-three".

Divisors: 1 3 17 51 257 281 771 843 4369 4777 13107 14331 35569 72217 106707 216651 604673 1227689 1814019 3683067 9141233 9994889 27423699 29984667 155400961 169913113 466202883 509739339 2568686473 7706059419 43667670041 131003010123