131400111031 has 6 divisors (see below), whose sum is σ = 152853190440. Its totient is φ = 112628666556.

The previous prime is 131400111013. The next prime is 131400111043. The reversal of 131400111031 is 130111004131.

It is not a de Polignac number, because 131400111031 - 2¹⁷ = 131399979959 is a prime.

It is a super-2 number, since 2×131400111031² (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 = 131400110996 and 131400111014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131400151031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1340817411 + ... + 1340817508.

It is an arithmetic number, because the mean of its divisors is an integer number (25475531740).

Almost surely, 2^131400111031 is an apocalyptic number.

131400111031 is a deficient number, since it is larger than the sum of its proper divisors (21453079409).

131400111031 is an equidigital number, since it uses as much as digits as its factorization.

131400111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681634933 (or 2681634926 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131400111031 its reverse (130111004131), we get a palindrome (261511115162).

The spelling of 131400111031 in words is "one hundred thirty-one billion, four hundred million, one hundred eleven thousand, thirty-one".