331113021 has 8 divisors (see below), whose sum is σ = 441886560. Its totient is φ = 220540752.

The previous prime is 331113001. The next prime is 331113031. The reversal of 331113021 is 120311133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 331113021 - 2⁵ = 331112989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331113001) 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, 46435 + ... + 53088.

It is an arithmetic number, because the mean of its divisors is an integer number (55235820).

Almost surely, 2^331113021 is an apocalyptic number.

It is an amenable number.

331113021 is a deficient number, since it is larger than the sum of its proper divisors (110773539).

331113021 is a wasteful number, since it uses less digits than its factorization.

331113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100635.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 331113021 is about 18196.5112315521. The cubic root of 331113021 is about 691.8183649332.

Adding to 331113021 its reverse (120311133), we get a palindrome (451424154).

The spelling of 331113021 in words is "three hundred thirty-one million, one hundred thirteen thousand, twenty-one".