123431140183151 has 2 divisors, whose sum is σ = 123431140183152. Its totient is φ = 123431140183150.

The previous prime is 123431140183139. The next prime is 123431140183193. The reversal of 123431140183151 is 151381041134321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123431140183151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123431140185151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61715570091575 + 61715570091576.

It is an arithmetic number, because the mean of its divisors is an integer number (61715570091576).

Almost surely, 2^{123431140183151} is an apocalyptic number.

123431140183151 is a deficient number, since it is larger than the sum of its proper divisors (1).

123431140183151 is an equidigital number, since it uses as much as digits as its factorization.

123431140183151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 123431140183151 in words is "one hundred twenty-three trillion, four hundred thirty-one billion, one hundred forty million, one hundred eighty-three thousand, one hundred fifty-one".