100012311012 has 48 divisors (see below), whose sum is σ = 235135075392. Its totient is φ = 33084846720.

The previous prime is 100012310999. The next prime is 100012311043. The reversal of 100012311012 is 210113210001.

It is a super-2 number, since 2×100012311012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113087 + ... + 1199577.

It is an arithmetic number, because the mean of its divisors is an integer number (4898647404).

Almost surely, 2^100012311012 is an apocalyptic number.

100012311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100012311012 is an abundant number, since it is smaller than the sum of its proper divisors (135122764380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100012311012 is a wasteful number, since it uses less digits than its factorization.

100012311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87228 (or 87226 counting only the distinct ones).

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

Adding to 100012311012 its reverse (210113210001), we get a palindrome (310125521013).

The spelling of 100012311012 in words is "one hundred billion, twelve million, three hundred eleven thousand, twelve".