331131020010121 has 8 divisors (see below), whose sum is σ = 350643766634280. Its totient is φ = 311622101311488.

The previous prime is 331131020010101. The next prime is 331131020010127. The reversal of 331131020010121 is 121010020131133.

It can be written as a sum of positive squares in 4 ways, for example, as 127071623486025 + 204059396524096 = 11272605^2 + 14284936^2 .

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 331131020010121 - 2²¹ = 331131017912969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331131020010127) 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, 956803276 + ... + 957149293.

It is an arithmetic number, because the mean of its divisors is an integer number (43830470829285).

Almost surely, 2^{331131020010121} is an apocalyptic number.

It is an amenable number.

331131020010121 is a deficient number, since it is larger than the sum of its proper divisors (19512746624159).

331131020010121 is a wasteful number, since it uses less digits than its factorization.

331131020010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913962763.

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

Adding to 331131020010121 its reverse (121010020131133), we get a palindrome (452141040141254).

The spelling of 331131020010121 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, twenty million, ten thousand, one hundred twenty-one".