131441145431 has 4 divisors (see below), whose sum is σ = 131540198112. Its totient is φ = 131342092752.

The previous prime is 131441145413. The next prime is 131441145449. The reversal of 131441145431 is 134541144131.

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

It is an interprime number because it is at equal distance from previous prime (131441145413) and next prime (131441145449).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131441145431 is a prime.

It is a super-2 number, since 2×131441145431² (a number of 23 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 (131441145461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49524350 + ... + 49527003.

It is an arithmetic number, because the mean of its divisors is an integer number (32885049528).

Almost surely, 2^131441145431 is an apocalyptic number.

131441145431 is a deficient number, since it is larger than the sum of its proper divisors (99052681).

131441145431 is an equidigital number, since it uses as much as digits as its factorization.

131441145431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99052680.

The product of its digits is 11520, while the sum is 32.

Adding to 131441145431 its reverse (134541144131), we get a palindrome (265982289562).

The spelling of 131441145431 in words is "one hundred thirty-one billion, four hundred forty-one million, one hundred forty-five thousand, four hundred thirty-one".