210000103131 has 64 divisors (see below), whose sum is σ = 374749175808. Its totient is φ = 101435701248.

The previous prime is 210000103127. The next prime is 210000103153. The reversal of 210000103131 is 131301000012.

It is not a de Polignac number, because 210000103131 - 2² = 210000103127 is a prime.

It is a super-2 number, since 2×210000103131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210000101131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 439755 + ... + 783188.

It is an arithmetic number, because the mean of its divisors is an integer number (5855455872).

Almost surely, 2^210000103131 is an apocalyptic number.

210000103131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210000103131 is a deficient number, since it is larger than the sum of its proper divisors (164749072677).

210000103131 is a wasteful number, since it uses less digits than its factorization.

210000103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223020.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 210000103131 its reverse (131301000012), we get a palindrome (341301103143).

The spelling of 210000103131 in words is "two hundred ten billion, one hundred three thousand, one hundred thirty-one".