131440407131 has 4 divisors (see below), whose sum is σ = 143389535064. Its totient is φ = 119491279200.

The previous prime is 131440407103. The next prime is 131440407187. The reversal of 131440407131 is 131704044131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131704044131 = 11 ⋅11973094921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131440407131 is a prime.

It is a super-2 number, since 2×131440407131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131440407094 and 131440407103.

It is not an unprimeable number, because it can be changed into a prime (131440404131) 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, 5974563950 + ... + 5974563971.

It is an arithmetic number, because the mean of its divisors is an integer number (35847383766).

Almost surely, 2^131440407131 is an apocalyptic number.

131440407131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131440407131 is a deficient number, since it is larger than the sum of its proper divisors (11949127933).

131440407131 is a wasteful number, since it uses less digits than its factorization.

131440407131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11949127932.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 131440407131 in words is "one hundred thirty-one billion, four hundred forty million, four hundred seven thousand, one hundred thirty-one".