131033232331 has 2 divisors, whose sum is σ = 131033232332. Its totient is φ = 131033232330.

The previous prime is 131033232329. The next prime is 131033232371. The reversal of 131033232331 is 133232330131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131033232331 - 2¹ = 131033232329 is a prime.

It is a super-2 number, since 2×131033232331² (a number of 23 digits) contains 22 as substring.

Together with 131033232329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 131033232296 and 131033232305.

It is not a weakly prime, because it can be changed into another prime (131033232371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65516616165 + 65516616166.

It is an arithmetic number, because the mean of its divisors is an integer number (65516616166).

Almost surely, 2^131033232331 is an apocalyptic number.

131033232331 is a deficient number, since it is larger than the sum of its proper divisors (1).

131033232331 is an equidigital number, since it uses as much as digits as its factorization.

131033232331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 131033232331 its reverse (133232330131), we get a palindrome (264265562462).

The spelling of 131033232331 in words is "one hundred thirty-one billion, thirty-three million, two hundred thirty-two thousand, three hundred thirty-one".