131023122012121 has 8 divisors (see below), whose sum is σ = 132698917164800. Its totient is φ = 129347758725120.

The previous prime is 131023122012091. The next prime is 131023122012137. The reversal of 131023122012121 is 121210221320131.

It is a happy number.

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 131023122012121 - 2¹¹ = 131023122010073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131023122012092 and 131023122012101.

It is not an unprimeable number, because it can be changed into a prime (131023122012521) 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, 107355741 + ... + 108569338.

It is an arithmetic number, because the mean of its divisors is an integer number (16587364645600).

Almost surely, 2^{131023122012121} is an apocalyptic number.

It is an amenable number.

131023122012121 is a deficient number, since it is larger than the sum of its proper divisors (1675795152679).

131023122012121 is an equidigital number, since it uses as much as digits as its factorization.

131023122012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215932839.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131023122012121 its reverse (121210221320131), we get a palindrome (252233343332252).

The spelling of 131023122012121 in words is "one hundred thirty-one trillion, twenty-three billion, one hundred twenty-two million, twelve thousand, one hundred twenty-one".