131020331220121 has 8 divisors (see below), whose sum is σ = 149744190505664. Its totient is φ = 112298139212400.

The previous prime is 131020331220109. The next prime is 131020331220133. The reversal of 131020331220121 is 121022133020131.

It is an interprime number because it is at equal distance from previous prime (131020331220109) and next prime (131020331220133).

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 131020331220121 - 2⁵ = 131020331220089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131020331220092 and 131020331220101.

It is not an unprimeable number, because it can be changed into a prime (131020331220221) 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, 416651055 + ... + 416965396.

It is an arithmetic number, because the mean of its divisors is an integer number (18718023813208).

Almost surely, 2^{131020331220121} is an apocalyptic number.

It is an amenable number.

131020331220121 is a deficient number, since it is larger than the sum of its proper divisors (18723859285543).

131020331220121 is an equidigital number, since it uses as much as digits as its factorization.

131020331220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833638911.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131020331220121 its reverse (121022133020131), we get a palindrome (252042464240252).

The spelling of 131020331220121 in words is "one hundred thirty-one trillion, twenty billion, three hundred thirty-one million, two hundred twenty thousand, one hundred twenty-one".