320102201331 has 24 divisors (see below), whose sum is σ = 512672387760. Its totient is φ = 190820980800.

The previous prime is 320102201311. The next prime is 320102201351. The reversal of 320102201331 is 133102201023.

320102201331 is a `hidden beast` number, since 32 + 0 + 102 + 201 + 331 = 666.

It is an interprime number because it is at equal distance from previous prime (320102201311) and next prime (320102201351).

It is not a de Polignac number, because 320102201331 - 2⁷ = 320102201203 is a prime.

It is a super-2 number, since 2×320102201331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320102201311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26496876 + ... + 26508953.

It is an arithmetic number, because the mean of its divisors is an integer number (21361349490).

Almost surely, 2^320102201331 is an apocalyptic number.

320102201331 is a deficient number, since it is larger than the sum of its proper divisors (192570186429).

320102201331 is a wasteful number, since it uses less digits than its factorization.

320102201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53005907 (or 53005904 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 320102201331 its reverse (133102201023), we get a palindrome (453204402354).

The spelling of 320102201331 in words is "three hundred twenty billion, one hundred two million, two hundred one thousand, three hundred thirty-one".