13213253511 has 24 divisors (see below), whose sum is σ = 19265407200. Its totient is φ = 8726032896.

The previous prime is 13213253507. The next prime is 13213253531. The reversal of 13213253511 is 11535231231.

13213253511 is a `hidden beast` number, since 1 + 321 + 325 + 3 + 5 + 11 = 666.

It is not a de Polignac number, because 13213253511 - 2² = 13213253507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213253531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3505750 + ... + 3509516.

It is an arithmetic number, because the mean of its divisors is an integer number (802725300).

Almost surely, 2^13213253511 is an apocalyptic number.

13213253511 is a deficient number, since it is larger than the sum of its proper divisors (6052153689).

13213253511 is a wasteful number, since it uses less digits than its factorization.

13213253511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335 (or 7332 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

Adding to 13213253511 its reverse (11535231231), we get a palindrome (24748484742).

The spelling of 13213253511 in words is "thirteen billion, two hundred thirteen million, two hundred fifty-three thousand, five hundred eleven".