13131323011 has 16 divisors (see below), whose sum is σ = 13516322400. Its totient is φ = 12749587200.

The previous prime is 13131322991. The next prime is 13131323021. The reversal of 13131323011 is 11032313131.

It is a cyclic number.

It is not a de Polignac number, because 13131323011 - 2⁵ = 13131322979 is a prime.

It is a super-2 number, since 2×13131323011² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13131323011.

It is not an unprimeable number, because it can be changed into a prime (13131323021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10683945 + ... + 10685173.

It is an arithmetic number, because the mean of its divisors is an integer number (844770150).

Almost surely, 2^13131323011 is an apocalyptic number.

13131323011 is a deficient number, since it is larger than the sum of its proper divisors (384999389).

13131323011 is a wasteful number, since it uses less digits than its factorization.

13131323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13131323011 its reverse (11032313131), we get a palindrome (24163636142).

The spelling of 13131323011 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-three thousand, eleven".