11311013112 has 32 divisors (see below), whose sum is σ = 32317180800. Its totient is φ = 3231717984.

The previous prime is 11311013111. The next prime is 11311013113. The reversal of 11311013112 is 21131011311.

It is an interprime number because it is at equal distance from previous prime (11311013111) and next prime (11311013113).

It is a junction number, because it is equal to n+sod(n) for n = 11311013091 and 11311013100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311013111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33663562 + ... + 33663897.

It is an arithmetic number, because the mean of its divisors is an integer number (1009911900).

Almost surely, 2^11311013112 is an apocalyptic number.

11311013112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11311013112 is an abundant number, since it is smaller than the sum of its proper divisors (21006167688).

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

11311013112 is a wasteful number, since it uses less digits than its factorization.

11311013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67327475 (or 67327471 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11311013112 its reverse (21131011311), we get a palindrome (32442024423).

The spelling of 11311013112 in words is "eleven billion, three hundred eleven million, thirteen thousand, one hundred twelve".