131303111313121 has 4 divisors (see below), whose sum is σ = 143239757796144. Its totient is φ = 119366464830100.

The previous prime is 131303111313107. The next prime is 131303111313233. The reversal of 131303111313121 is 121313111303131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131303111313121 - 2³⁹ = 130753355499233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131303111313421) 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, 5968323241495 + ... + 5968323241516.

It is an arithmetic number, because the mean of its divisors is an integer number (35809939449036).

Almost surely, 2^{131303111313121} is an apocalyptic number.

131303111313121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131303111313121 is a deficient number, since it is larger than the sum of its proper divisors (11936646483023).

131303111313121 is a wasteful number, since it uses less digits than its factorization.

131303111313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11936646483022.

The product of its (nonzero) digits is 486, while the sum is 25.

Adding to 131303111313121 its reverse (121313111303131), we get a palindrome (252616222616252).

The spelling of 131303111313121 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred eleven million, three hundred thirteen thousand, one hundred twenty-one".