13113212012 has 48 divisors (see below), whose sum is σ = 23422053312. Its totient is φ = 6423029760.

The previous prime is 13113211963. The next prime is 13113212039. The reversal of 13113212012 is 21021231131.

It is a super-2 number, since 2×13113212012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26069753 + ... + 26070255.

It is an arithmetic number, because the mean of its divisors is an integer number (487959444).

Almost surely, 2^13113212012 is an apocalyptic number.

It is an amenable number.

13113212012 is a deficient number, since it is larger than the sum of its proper divisors (10308841300).

13113212012 is a wasteful number, since it uses less digits than its factorization.

13113212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13113212012 its reverse (21021231131), we get a palindrome (34134443143).

The spelling of 13113212012 in words is "thirteen billion, one hundred thirteen million, two hundred twelve thousand, twelve".