100011055972 has 12 divisors (see below), whose sum is σ = 184230892720. Its totient is φ = 47373658056.

The previous prime is 100011055961. The next prime is 100011055979. The reversal of 100011055972 is 279550110001.

It is a super-2 number, since 2×100011055972² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100011055979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657967398 + ... + 657967549.

Almost surely, 2^100011055972 is an apocalyptic number.

It is an amenable number.

100011055972 is a deficient number, since it is larger than the sum of its proper divisors (84219836748).

100011055972 is a wasteful number, since it uses less digits than its factorization.

100011055972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315934970 (or 1315934968 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 31.

Adding to 100011055972 its reverse (279550110001), we get a palindrome (379561165973).

The spelling of 100011055972 in words is "one hundred billion, eleven million, fifty-five thousand, nine hundred seventy-two".