131302221307 has 2 divisors, whose sum is σ = 131302221308. Its totient is φ = 131302221306.

The previous prime is 131302221289. The next prime is 131302221329. The reversal of 131302221307 is 703122203131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131302221307 - 2²⁷ = 131168003579 is a prime.

It is not a weakly prime, because it can be changed into another prime (131302227307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651110653 + 65651110654.

It is an arithmetic number, because the mean of its divisors is an integer number (65651110654).

Almost surely, 2^131302221307 is an apocalyptic number.

131302221307 is a deficient number, since it is larger than the sum of its proper divisors (1).

131302221307 is an equidigital number, since it uses as much as digits as its factorization.

131302221307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 131302221307 its reverse (703122203131), we get a palindrome (834424424438).

The spelling of 131302221307 in words is "one hundred thirty-one billion, three hundred two million, two hundred twenty-one thousand, three hundred seven".