11312315112 has 64 divisors (see below), whose sum is σ = 32431351680. Its totient is φ = 3221044992.

The previous prime is 11312315107. The next prime is 11312315141. The reversal of 11312315112 is 21151321311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65683 + ... + 164130.

It is an arithmetic number, because the mean of its divisors is an integer number (506739870).

Almost surely, 2^11312315112 is an apocalyptic number.

11312315112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11312315112 is an abundant number, since it is smaller than the sum of its proper divisors (21119036568).

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

11312315112 is a wasteful number, since it uses less digits than its factorization.

11312315112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230122 (or 230118 counting only the distinct ones).

The product of its digits is 180, while the sum is 21.

Adding to 11312315112 its reverse (21151321311), we get a palindrome (32463636423).

The spelling of 11312315112 in words is "eleven billion, three hundred twelve million, three hundred fifteen thousand, one hundred twelve".