131302243331 has 12 divisors (see below), whose sum is σ = 153905301000. Its totient is φ = 111685654080.

The previous prime is 131302243321. The next prime is 131302243339. The reversal of 131302243331 is 133342203131.

It is a de Polignac number, because none of the positive numbers 2^k-131302243331 is a prime.

It is a super-2 number, since 2×131302243331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131302243331.

It is not an unprimeable number, because it can be changed into a prime (131302243339) 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 11 ways as a sum of consecutive naturals, for example, 10221206 + ... + 10234043.

It is an arithmetic number, because the mean of its divisors is an integer number (12825441750).

Almost surely, 2^131302243331 is an apocalyptic number.

131302243331 is a deficient number, since it is larger than the sum of its proper divisors (22603057669).

131302243331 is a wasteful number, since it uses less digits than its factorization.

131302243331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20455394 (or 20455387 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 131302243331 its reverse (133342203131), we get a palindrome (264644446462).

The spelling of 131302243331 in words is "one hundred thirty-one billion, three hundred two million, two hundred forty-three thousand, three hundred thirty-one".