100331012131 has 32 divisors (see below), whose sum is σ = 123934993920. Its totient is φ = 79269290496.

The previous prime is 100331012129. The next prime is 100331012141. The reversal of 100331012131 is 131210133001.

It is a cyclic number.

It is not a de Polignac number, because 100331012131 - 2¹ = 100331012129 is a prime.

It is a super-2 number, since 2×100331012131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100331012141) 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, 1342960 + ... + 1415698.

It is an arithmetic number, because the mean of its divisors is an integer number (3872968560).

Almost surely, 2^100331012131 is an apocalyptic number.

100331012131 is a deficient number, since it is larger than the sum of its proper divisors (23603981789).

100331012131 is a wasteful number, since it uses less digits than its factorization.

100331012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73003.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 100331012131 its reverse (131210133001), we get a palindrome (231541145132).

The spelling of 100331012131 in words is "one hundred billion, three hundred thirty-one million, twelve thousand, one hundred thirty-one".