13113321212 has 24 divisors (see below), whose sum is σ = 24425452800. Its totient is φ = 6138659840.

The previous prime is 13113321211. The next prime is 13113321217. The reversal of 13113321212 is 21212331131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113321211) 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, 491837 + ... + 517812.

It is an arithmetic number, because the mean of its divisors is an integer number (1017727200).

Almost surely, 2^13113321212 is an apocalyptic number.

It is an amenable number.

13113321212 is a deficient number, since it is larger than the sum of its proper divisors (11312131588).

13113321212 is a wasteful number, since it uses less digits than its factorization.

13113321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009861 (or 1009859 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 13113321212 its reverse (21212331131), we get a palindrome (34325652343).

The spelling of 13113321212 in words is "thirteen billion, one hundred thirteen million, three hundred twenty-one thousand, two hundred twelve".