131340244431 has 32 divisors (see below), whose sum is σ = 193118035968. Its totient is φ = 78738186240.

The previous prime is 131340244423. The next prime is 131340244433. The reversal of 131340244431 is 134442043131.

It is not a de Polignac number, because 131340244431 - 2³ = 131340244423 is a prime.

It is a super-2 number, since 2×131340244431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131340244433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1365871 + ... + 1458863.

It is an arithmetic number, because the mean of its divisors is an integer number (6034938624).

Almost surely, 2^131340244431 is an apocalyptic number.

131340244431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131340244431 is a deficient number, since it is larger than the sum of its proper divisors (61777791537).

131340244431 is a wasteful number, since it uses less digits than its factorization.

131340244431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93471.

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

Adding to 131340244431 its reverse (134442043131), we get a palindrome (265782287562).

The spelling of 131340244431 in words is "one hundred thirty-one billion, three hundred forty million, two hundred forty-four thousand, four hundred thirty-one".