13311202400020 has 48 divisors (see below), whose sum is σ = 31949418049920. Its totient is φ = 4563479067264.

The previous prime is 13311202399949. The next prime is 13311202400039. The reversal of 13311202400020 is 2000420211331.

It is a happy number.

It is a congruent number.

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, 1992790 + ... + 5531149.

It is an arithmetic number, because the mean of its divisors is an integer number (665612876040).

Almost surely, 2^{13311202400020} is an apocalyptic number.

13311202400020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311202400020 is an abundant number, since it is smaller than the sum of its proper divisors (18638215649900).

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

13311202400020 is a wasteful number, since it uses less digits than its factorization.

13311202400020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536592 (or 7536590 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13311202400020 its reverse (2000420211331), we get a palindrome (15311622611351).

The spelling of 13311202400020 in words is "thirteen trillion, three hundred eleven billion, two hundred two million, four hundred thousand, twenty".