100100031021112 has 8 divisors (see below), whose sum is σ = 187687558164600. Its totient is φ = 50050015510552.

The previous prime is 100100031021083. The next prime is 100100031021119. The reversal of 100100031021112 is 211120130001001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 100100031021092 and 100100031021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100100031021119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256251938812 + ... + 6256251938827.

It is an arithmetic number, because the mean of its divisors is an integer number (23460944770575).

Almost surely, 2^{100100031021112} is an apocalyptic number.

It is an amenable number.

100100031021112 is a deficient number, since it is larger than the sum of its proper divisors (87587527143488).

100100031021112 is a wasteful number, since it uses less digits than its factorization.

100100031021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12512503877645 (or 12512503877641 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 100100031021112 its reverse (211120130001001), we get a palindrome (311220161022113).

The spelling of 100100031021112 in words is "one hundred trillion, one hundred billion, thirty-one million, twenty-one thousand, one hundred twelve".