13213201331 has 48 divisors (see below), whose sum is σ = 15854791680. Its totient is φ = 10961438400.

The previous prime is 13213201283. The next prime is 13213201349. The reversal of 13213201331 is 13310231231.

It is not a de Polignac number, because 13213201331 - 2²⁶ = 13146092467 is a prime.

It is a super-2 number, since 2×13213201331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13213201381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28293560 + ... + 28294026.

It is an arithmetic number, because the mean of its divisors is an integer number (330308160).

Almost surely, 2^13213201331 is an apocalyptic number.

13213201331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13213201331 is a deficient number, since it is larger than the sum of its proper divisors (2641590349).

13213201331 is a wasteful number, since it uses less digits than its factorization.

13213201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13213201331 its reverse (13310231231), we get a palindrome (26523432562).

The spelling of 13213201331 in words is "thirteen billion, two hundred thirteen million, two hundred one thousand, three hundred thirty-one".