131312310121 has 8 divisors (see below), whose sum is σ = 134175481344. Its totient is φ = 128463419760.

The previous prime is 131312310119. The next prime is 131312310127. The reversal of 131312310121 is 121013213131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131312310121 - 2¹ = 131312310119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131312310127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3551625 + ... + 3588406.

It is an arithmetic number, because the mean of its divisors is an integer number (16771935168).

Almost surely, 2^131312310121 is an apocalyptic number.

It is an amenable number.

131312310121 is a deficient number, since it is larger than the sum of its proper divisors (2863171223).

131312310121 is an equidigital number, since it uses as much as digits as its factorization.

131312310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140431.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131312310121 its reverse (121013213131), we get a palindrome (252325523252).

The spelling of 131312310121 in words is "one hundred thirty-one billion, three hundred twelve million, three hundred ten thousand, one hundred twenty-one".