13213025442331 has 24 divisors (see below), whose sum is σ = 15608712365136. Its totient is φ = 11087550714240.

The previous prime is 13213025442329. The next prime is 13213025442349. The reversal of 13213025442331 is 13324452031231.

It is not a de Polignac number, because 13213025442331 - 2¹ = 13213025442329 is a prime.

It is a super-2 number, since 2×13213025442331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13213025442031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90968241 + ... + 91113373.

It is an arithmetic number, because the mean of its divisors is an integer number (650363015214).

Almost surely, 2^{13213025442331} is an apocalyptic number.

13213025442331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13213025442331 is a deficient number, since it is larger than the sum of its proper divisors (2395686922805).

13213025442331 is a wasteful number, since it uses less digits than its factorization.

13213025442331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194143 (or 194130 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 13213025442331 its reverse (13324452031231), we get a palindrome (26537477473562).

The spelling of 13213025442331 in words is "thirteen trillion, two hundred thirteen billion, twenty-five million, four hundred forty-two thousand, three hundred thirty-one".