131311003312231 has 4 divisors (see below), whose sum is σ = 132973167911200. Its totient is φ = 129648838713264.

The previous prime is 131311003312193. The next prime is 131311003312261. The reversal of 131311003312231 is 132213300113131.

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 131311003312231 - 2¹⁷ = 131311003181159 is a prime.

It is a super-2 number, since 2×131311003312231² (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 = 131311003312196 and 131311003312205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311003312261) 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, 831082299366 + ... + 831082299523.

It is an arithmetic number, because the mean of its divisors is an integer number (33243291977800).

Almost surely, 2^{131311003312231} is an apocalyptic number.

131311003312231 is a deficient number, since it is larger than the sum of its proper divisors (1662164598969).

131311003312231 is an equidigital number, since it uses as much as digits as its factorization.

131311003312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662164598968.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 131311003312231 its reverse (132213300113131), we get a palindrome (263524303425362).

The spelling of 131311003312231 in words is "one hundred thirty-one trillion, three hundred eleven billion, three million, three hundred twelve thousand, two hundred thirty-one".