20100312112 has 20 divisors (see below), whose sum is σ = 38948105376. Its totient is φ = 10049188160.

The previous prime is 20100312109. The next prime is 20100312131. The reversal of 20100312112 is 21121300102.

It is a junction number, because it is equal to n+sod(n) for n = 20100312092 and 20100312101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128778 + ... + 238294.

Almost surely, 2^20100312112 is an apocalyptic number.

It is an amenable number.

20100312112 is a deficient number, since it is larger than the sum of its proper divisors (18847793264).

20100312112 is a wasteful number, since it uses less digits than its factorization.

20100312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120996 (or 120990 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20100312112 its reverse (21121300102), we get a palindrome (41221612214).

The spelling of 20100312112 in words is "twenty billion, one hundred million, three hundred twelve thousand, one hundred twelve".