11312013100 has 36 divisors (see below), whose sum is σ = 24563834064. Its totient is φ = 4521714880.

The previous prime is 11312013091. The next prime is 11312013101. The reversal of 11312013100 is 131021311.

It is a super-2 number, since 2×11312013100² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11312013101) 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 in 11 ways as a sum of consecutive naturals, for example, 111417 + ... + 187183.

It is an arithmetic number, because the mean of its divisors is an integer number (682328724).

Almost surely, 2^11312013100 is an apocalyptic number.

11312013100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312013100 is an abundant number, since it is smaller than the sum of its proper divisors (13251820964).

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

11312013100 is a wasteful number, since it uses less digits than its factorization.

11312013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77274 (or 77267 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11312013100 its reverse (131021311), we get a palindrome (11443034411).

The spelling of 11312013100 in words is "eleven billion, three hundred twelve million, thirteen thousand, one hundred".