131020231044423 has 16 divisors (see below), whose sum is σ = 210157764081920. Its totient is φ = 70928245377216.

The previous prime is 131020231044421. The next prime is 131020231044449. The reversal of 131020231044423 is 324440132020131.

It is not a de Polignac number, because 131020231044423 - 2¹ = 131020231044421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020231044421) 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, 164185752790 + ... + 164185753587.

It is an arithmetic number, because the mean of its divisors is an integer number (13134860255120).

Almost surely, 2^{131020231044423} is an apocalyptic number.

131020231044423 is a deficient number, since it is larger than the sum of its proper divisors (79137533037497).

131020231044423 is a wasteful number, since it uses less digits than its factorization.

131020231044423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328371506406.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 131020231044423 its reverse (324440132020131), we get a palindrome (455460363064554).

The spelling of 131020231044423 in words is "one hundred thirty-one trillion, twenty billion, two hundred thirty-one million, forty-four thousand, four hundred twenty-three".