331203013121 has 8 divisors (see below), whose sum is σ = 335953868064. Its totient is φ = 326457937440.

The previous prime is 331203013091. The next prime is 331203013171. The reversal of 331203013121 is 121310302133.

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 331203013121 - 2²² = 331198818817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331203013093 and 331203013102.

It is not an unprimeable number, because it can be changed into a prime (331203013171) 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, 1329311 + ... + 1558676.

It is an arithmetic number, because the mean of its divisors is an integer number (41994233508).

Almost surely, 2^331203013121 is an apocalyptic number.

It is an amenable number.

331203013121 is a deficient number, since it is larger than the sum of its proper divisors (4750854943).

331203013121 is a wasteful number, since it uses less digits than its factorization.

331203013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889631.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 331203013121 its reverse (121310302133), we get a palindrome (452513315254).

The spelling of 331203013121 in words is "three hundred thirty-one billion, two hundred three million, thirteen thousand, one hundred twenty-one".