320311233320121 has 6 divisors (see below), whose sum is σ = 462671781462410. Its totient is φ = 213540822213408.

The previous prime is 320311233320119. The next prime is 320311233320131. The reversal of 320311233320121 is 121023332113023.

320311233320121 is a `hidden beast` number, since 3 + 2 + 0 + 311 + 2 + 3 + 3 + 320 + 1 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 166802106905721 + 153509126414400 = 12915189^2 + 12389880^2 .

It is not a de Polignac number, because 320311233320121 - 2¹ = 320311233320119 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 (320311233320131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17795068517776 + ... + 17795068517793.

Almost surely, 2^{320311233320121} is an apocalyptic number.

It is an amenable number.

320311233320121 is a deficient number, since it is larger than the sum of its proper divisors (142360548142289).

320311233320121 is a wasteful number, since it uses less digits than its factorization.

320311233320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35590137035575 (or 35590137035572 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 320311233320121 its reverse (121023332113023), we get a palindrome (441334565433144).

The spelling of 320311233320121 in words is "three hundred twenty trillion, three hundred eleven billion, two hundred thirty-three million, three hundred twenty thousand, one hundred twenty-one".