11312311223100 has 72 divisors (see below), whose sum is σ = 32747452028928. Its totient is φ = 3015034308800.

The previous prime is 11312311223077. The next prime is 11312311223207. The reversal of 11312311223100 is 132211321311.

It is a super-2 number, since 2×11312311223100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9314556 + ... + 10458755.

It is an arithmetic number, because the mean of its divisors is an integer number (454825722624).

Almost surely, 2^{11312311223100} is an apocalyptic number.

11312311223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312311223100 is an abundant number, since it is smaller than the sum of its proper divisors (21435140805828).

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

11312311223100 is a wasteful number, since it uses less digits than its factorization.

11312311223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19775235 (or 19775228 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11312311223100 its reverse (132211321311), we get a palindrome (11444522544411).

The spelling of 11312311223100 in words is "eleven trillion, three hundred twelve billion, three hundred eleven million, two hundred twenty-three thousand, one hundred".