13020123202 has 4 divisors (see below), whose sum is σ = 19530184806. Its totient is φ = 6510061600.

The previous prime is 13020123187. The next prime is 13020123229. The reversal of 13020123202 is 20232102031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20232102031 = 5419 ⋅3733549.

It can be written as a sum of positive squares in only one way, i.e., 8170532881 + 4849590321 = 90391^2 + 69639^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255030799 + ... + 3255030802.

Almost surely, 2^13020123202 is an apocalyptic number.

13020123202 is a deficient number, since it is larger than the sum of its proper divisors (6510061604).

13020123202 is an equidigital number, since it uses as much as digits as its factorization.

13020123202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510061603.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13020123202 its reverse (20232102031), we get a palindrome (33252225233).

The spelling of 13020123202 in words is "thirteen billion, twenty million, one hundred twenty-three thousand, two hundred two".