13311133231020 has 96 divisors (see below), whose sum is σ = 38066667061248. Its totient is φ = 3473884077312.

The previous prime is 13311133230979. The next prime is 13311133231079. The reversal of 13311133231020 is 2013233111331.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45331794 + ... + 45624486.

It is an arithmetic number, because the mean of its divisors is an integer number (396527781888).

Almost surely, 2^{13311133231020} is an apocalyptic number.

13311133231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311133231020 is an abundant number, since it is smaller than the sum of its proper divisors (24755533830228).

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

13311133231020 is a wasteful number, since it uses less digits than its factorization.

13311133231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308879 (or 308877 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 13311133231020 its reverse (2013233111331), we get a palindrome (15324366342351).

The spelling of 13311133231020 in words is "thirteen trillion, three hundred eleven billion, one hundred thirty-three million, two hundred thirty-one thousand, twenty".