131213010231243 has 24 divisors (see below), whose sum is σ = 189886061847456. Its totient is φ = 87311003673600.

The previous prime is 131213010231223. The next prime is 131213010231283. The reversal of 131213010231243 is 342132010312131.

131213010231243 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 1 + 301 + 0 + 2 + 312 + 43 = 666.

It is not a de Polignac number, because 131213010231243 - 2⁵ = 131213010231211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131213010231203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33842413 + ... + 37519793.

It is an arithmetic number, because the mean of its divisors is an integer number (7911919243644).

Almost surely, 2^{131213010231243} is an apocalyptic number.

131213010231243 is a deficient number, since it is larger than the sum of its proper divisors (58673051616213).

131213010231243 is a wasteful number, since it uses less digits than its factorization.

131213010231243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684835 (or 3684832 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 131213010231243 its reverse (342132010312131), we get a palindrome (473345020543374).

The spelling of 131213010231243 in words is "one hundred thirty-one trillion, two hundred thirteen billion, ten million, two hundred thirty-one thousand, two hundred forty-three".