13156254204261 has 96 divisors (see below), whose sum is σ = 21893440714752. Its totient is φ = 6877600773120.

The previous prime is 13156254204157. The next prime is 13156254204263. The reversal of 13156254204261 is 16240245265131.

It is not a de Polignac number, because 13156254204261 - 2¹¹ = 13156254202213 is a prime.

It is a super-2 number, since 2×13156254204261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13156254204263) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 231485730 + ... + 231542556.

It is an arithmetic number, because the mean of its divisors is an integer number (228056674112).

Almost surely, 2^{13156254204261} is an apocalyptic number.

It is an amenable number.

13156254204261 is a deficient number, since it is larger than the sum of its proper divisors (8737186510491).

13156254204261 is a wasteful number, since it uses less digits than its factorization.

13156254204261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57939 (or 57922 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

Adding to 13156254204261 its reverse (16240245265131), we get a palindrome (29396499469392).

The spelling of 13156254204261 in words is "thirteen trillion, one hundred fifty-six billion, two hundred fifty-four million, two hundred four thousand, two hundred sixty-one".