131231344140102 has 128 divisors (see below), whose sum is σ = 273705601720320. Its totient is φ = 41914589184000.

The previous prime is 131231344140059. The next prime is 131231344140103. The reversal of 131231344140102 is 201041443132131.

It is a self number, because there is not a number n which added to its sum of digits gives 131231344140102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131231344140103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3375880138 + ... + 3375919010.

It is an arithmetic number, because the mean of its divisors is an integer number (2138325013440).

Almost surely, 2^{131231344140102} is an apocalyptic number.

131231344140102 is an abundant number, since it is smaller than the sum of its proper divisors (142474257580218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131231344140102 is a wasteful number, since it uses less digits than its factorization.

131231344140102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39910.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131231344140102 its reverse (201041443132131), we get a palindrome (332272787272233).

The spelling of 131231344140102 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, three hundred forty-four million, one hundred forty thousand, one hundred two".