131424325243031 has 4 divisors (see below), whose sum is σ = 134629796590464. Its totient is φ = 128218853895600.

The previous prime is 131424325242961. The next prime is 131424325243073. The reversal of 131424325243031 is 130342523424131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131424325243031 is a prime.

It is a super-2 number, since 2×131424325243031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131424325243091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602735673655 + ... + 1602735673736.

It is an arithmetic number, because the mean of its divisors is an integer number (33657449147616).

Almost surely, 2^{131424325243031} is an apocalyptic number.

131424325243031 is a deficient number, since it is larger than the sum of its proper divisors (3205471347433).

131424325243031 is an equidigital number, since it uses as much as digits as its factorization.

131424325243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205471347432.

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

Adding to 131424325243031 its reverse (130342523424131), we get a palindrome (261766848667162).

The spelling of 131424325243031 in words is "one hundred thirty-one trillion, four hundred twenty-four billion, three hundred twenty-five million, two hundred forty-three thousand, thirty-one".