131213111203154 has 16 divisors (see below), whose sum is σ = 206236361813760. Its totient is φ = 62491527215040.

The previous prime is 131213111203151. The next prime is 131213111203169. The reversal of 131213111203154 is 451302111312131.

It is a super-2 number, since 2×131213111203154² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131213111203151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5967476327 + ... + 5967498314.

It is an arithmetic number, because the mean of its divisors is an integer number (12889772613360).

Almost surely, 2^{131213111203154} is an apocalyptic number.

131213111203154 is a deficient number, since it is larger than the sum of its proper divisors (75023250610606).

131213111203154 is a wasteful number, since it uses less digits than its factorization.

131213111203154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11934974905.

The product of its (nonzero) digits is 2160, while the sum is 29.

Adding to 131213111203154 its reverse (451302111312131), we get a palindrome (582515222515285).

The spelling of 131213111203154 in words is "one hundred thirty-one trillion, two hundred thirteen billion, one hundred eleven million, two hundred three thousand, one hundred fifty-four".