331331220113 has 32 divisors (see below), whose sum is σ = 344254095360. Its totient is φ = 318754414720.

The previous prime is 331331220071. The next prime is 331331220127. The reversal of 331331220113 is 311022133133.

It is a cyclic number.

It is not a de Polignac number, because 331331220113 - 2⁶ = 331331220049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (331331220013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302033381 + ... + 302034477.

It is an arithmetic number, because the mean of its divisors is an integer number (10757940480).

Almost surely, 2^331331220113 is an apocalyptic number.

It is an amenable number.

331331220113 is a deficient number, since it is larger than the sum of its proper divisors (12922875247).

331331220113 is a wasteful number, since it uses less digits than its factorization.

331331220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 331331220113 its reverse (311022133133), we get a palindrome (642353353246).

The spelling of 331331220113 in words is "three hundred thirty-one billion, three hundred thirty-one million, two hundred twenty thousand, one hundred thirteen".