131403430031 has 4 divisors (see below), whose sum is σ = 131404899864. Its totient is φ = 131401960200.

The previous prime is 131403430009. The next prime is 131403430043. The reversal of 131403430031 is 130034304131.

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

It is a cyclic number.

It is not a de Polignac number, because 131403430031 - 2⁶ = 131403429967 is a prime.

It is a super-2 number, since 2×131403430031² (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 = 131403429979 and 131403430006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403430531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591485 + ... + 782726.

It is an arithmetic number, because the mean of its divisors is an integer number (32851224966).

Almost surely, 2^131403430031 is an apocalyptic number.

131403430031 is a deficient number, since it is larger than the sum of its proper divisors (1469833).

131403430031 is an equidigital number, since it uses as much as digits as its factorization.

131403430031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469832.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131403430031 its reverse (130034304131), we get a palindrome (261437734162).

The spelling of 131403430031 in words is "one hundred thirty-one billion, four hundred three million, four hundred thirty thousand, thirty-one".