11311312331100 has 72 divisors (see below), whose sum is σ = 32732533039360. Its totient is φ = 3015876588480.

The previous prime is 11311312331093. The next prime is 11311312331101. The reversal of 11311312331100 is 113321311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311312331101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041652 + ... + 4869051.

Almost surely, 2^{11311312331100} is an apocalyptic number.

11311312331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11311312331100 is an abundant number, since it is smaller than the sum of its proper divisors (21421220708260).

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

11311312331100 is a wasteful number, since it uses less digits than its factorization.

11311312331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5917099 (or 5917092 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 11311312331100 its reverse (113321311311), we get a palindrome (11424633642411).

The spelling of 11311312331100 in words is "eleven trillion, three hundred eleven billion, three hundred twelve million, three hundred thirty-one thousand, one hundred".