13122203131 has 4 divisors (see below), whose sum is σ = 13127042632. Its totient is φ = 13117363632.

The previous prime is 13122203093. The next prime is 13122203161. The reversal of 13122203131 is 13130222131.

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 13122203131 - 2⁹ = 13122202619 is a prime.

It is a super-2 number, since 2×13122203131² (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 = 13122203099 and 13122203108.

It is not an unprimeable number, because it can be changed into a prime (13122203161) 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, 2415681 + ... + 2421106.

It is an arithmetic number, because the mean of its divisors is an integer number (3281760658).

Almost surely, 2^13122203131 is an apocalyptic number.

13122203131 is a deficient number, since it is larger than the sum of its proper divisors (4839501).

13122203131 is an equidigital number, since it uses as much as digits as its factorization.

13122203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839500.

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

Adding to 13122203131 its reverse (13130222131), we get a palindrome (26252425262).

The spelling of 13122203131 in words is "thirteen billion, one hundred twenty-two million, two hundred three thousand, one hundred thirty-one".