131045342342231 has 16 divisors (see below), whose sum is σ = 146413486353600. Its totient is φ = 116648769312768.

The previous prime is 131045342342221. The next prime is 131045342342261. The reversal of 131045342342231 is 132243243540131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131045342342231 is a prime.

It is a super-2 number, since 2×131045342342231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131045342342221) 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, 1882854686 + ... + 1882924283.

It is an arithmetic number, because the mean of its divisors is an integer number (9150842897100).

Almost surely, 2^{131045342342231} is an apocalyptic number.

131045342342231 is a deficient number, since it is larger than the sum of its proper divisors (15368144011369).

131045342342231 is a wasteful number, since it uses less digits than its factorization.

131045342342231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765779098.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 131045342342231 its reverse (132243243540131), we get a palindrome (263288585882362).

The spelling of 131045342342231 in words is "one hundred thirty-one trillion, forty-five billion, three hundred forty-two million, three hundred forty-two thousand, two hundred thirty-one".