13112031202 has 4 divisors (see below), whose sum is σ = 19668046806. Its totient is φ = 6556015600.

The previous prime is 13112031187. The next prime is 13112031211. The reversal of 13112031202 is 20213021131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20213021131 = 17 ⋅1189001243.

It can be written as a sum of positive squares in only one way, i.e., 12991668361 + 120362841 = 113981^2 + 10971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278007799 + ... + 3278007802.

Almost surely, 2^13112031202 is an apocalyptic number.

13112031202 is a deficient number, since it is larger than the sum of its proper divisors (6556015604).

13112031202 is an equidigital number, since it uses as much as digits as its factorization.

13112031202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6556015603.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13112031202 its reverse (20213021131), we get a palindrome (33325052333).

The spelling of 13112031202 in words is "thirteen billion, one hundred twelve million, thirty-one thousand, two hundred two".