13012322131 has 4 divisors (see below), whose sum is σ = 13080449664. Its totient is φ = 12944194600.

The previous prime is 13012322119. The next prime is 13012322161. The reversal of 13012322131 is 13122321031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13012322131 - 2¹³ = 13012313939 is a prime.

It is a super-2 number, since 2×13012322131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012322099 and 13012322108.

It is not an unprimeable number, because it can be changed into a prime (13012322101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34063480 + ... + 34063861.

It is an arithmetic number, because the mean of its divisors is an integer number (3270112416).

Almost surely, 2^13012322131 is an apocalyptic number.

13012322131 is a deficient number, since it is larger than the sum of its proper divisors (68127533).

13012322131 is an equidigital number, since it uses as much as digits as its factorization.

13012322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68127532.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13012322131 its reverse (13122321031), we get a palindrome (26134643162).

The spelling of 13012322131 in words is "thirteen billion, twelve million, three hundred twenty-two thousand, one hundred thirty-one".