11310111012 has 48 divisors (see below), whose sum is σ = 28038144960. Its totient is φ = 3541652352.

The previous prime is 11310110969. The next prime is 11310111037. The reversal of 11310111012 is 21011101311.

It is a super-2 number, since 2×11310111012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 426318 + ... + 452069.

It is an arithmetic number, because the mean of its divisors is an integer number (584128020).

Almost surely, 2^11310111012 is an apocalyptic number.

11310111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11310111012 is an abundant number, since it is smaller than the sum of its proper divisors (16728033948).

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

11310111012 is a wasteful number, since it uses less digits than its factorization.

11310111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878460 (or 878458 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11310111012 its reverse (21011101311), we get a palindrome (32321212323).

The spelling of 11310111012 in words is "eleven billion, three hundred ten million, one hundred eleven thousand, twelve".