13121132303220 has 48 divisors (see below), whose sum is σ = 37076227077120. Its totient is φ = 3466867982976.

The previous prime is 13121132303203. The next prime is 13121132303233. The reversal of 13121132303220 is 2230323112131.

13121132303220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13121132303220² (a number of 27 digits) contains 22 as substring.

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, 1003138132 + ... + 1003151211.

It is an arithmetic number, because the mean of its divisors is an integer number (772421397440).

Almost surely, 2^{13121132303220} is an apocalyptic number.

13121132303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121132303220 is an abundant number, since it is smaller than the sum of its proper divisors (23955094773900).

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

13121132303220 is a wasteful number, since it uses less digits than its factorization.

13121132303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006289464 (or 2006289462 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13121132303220 its reverse (2230323112131), we get a palindrome (15351455415351).

The spelling of 13121132303220 in words is "thirteen trillion, one hundred twenty-one billion, one hundred thirty-two million, three hundred three thousand, two hundred twenty".