131032311430331 has 4 divisors (see below), whose sum is σ = 131061710652072. Its totient is φ = 131002912208592.

The previous prime is 131032311430297. The next prime is 131032311430343. The reversal of 131032311430331 is 133034113230131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131032311430331 is a prime.

It is a super-2 number, since 2×131032311430331² (a number of 29 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 = 131032311430294 and 131032311430303.

It is not an unprimeable number, because it can be changed into a prime (131032311420331) 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, 14699604185 + ... + 14699613098.

It is an arithmetic number, because the mean of its divisors is an integer number (32765427663018).

Almost surely, 2^{131032311430331} is an apocalyptic number.

131032311430331 is a deficient number, since it is larger than the sum of its proper divisors (29399221741).

131032311430331 is an equidigital number, since it uses as much as digits as its factorization.

131032311430331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29399221740.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 131032311430331 its reverse (133034113230131), we get a palindrome (264066424660462).

The spelling of 131032311430331 in words is "one hundred thirty-one trillion, thirty-two billion, three hundred eleven million, four hundred thirty thousand, three hundred thirty-one".