13156213263 has 16 divisors (see below), whose sum is σ = 18508963200. Its totient is φ = 8289341280.

The previous prime is 13156213261. The next prime is 13156213297. The reversal of 13156213263 is 36231265131.

It is not a de Polignac number, because 13156213263 - 2¹ = 13156213261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13156213261) 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, 251548 + ... + 299313.

It is an arithmetic number, because the mean of its divisors is an integer number (1156810200).

Almost surely, 2^13156213263 is an apocalyptic number.

13156213263 is a deficient number, since it is larger than the sum of its proper divisors (5352749937).

13156213263 is a wasteful number, since it uses less digits than its factorization.

13156213263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551302.

The product of its digits is 19440, while the sum is 33.

Adding to 13156213263 its reverse (36231265131), we get a palindrome (49387478394).

The spelling of 13156213263 in words is "thirteen billion, one hundred fifty-six million, two hundred thirteen thousand, two hundred sixty-three".