31032330113321 has 4 divisors (see below), whose sum is σ = 31317030389700. Its totient is φ = 30747629836944.

The previous prime is 31032330113299. The next prime is 31032330113327. The reversal of 31032330113321 is 12331103323013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26317525863721 + 4714804249600 = 5130061^2 + 2171360^2 .

It is a cyclic number.

It is not a de Polignac number, because 31032330113321 - 2³⁰ = 31031256371497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31032330113327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142350138026 + ... + 142350138243.

It is an arithmetic number, because the mean of its divisors is an integer number (7829257597425).

Almost surely, 2^{31032330113321} is an apocalyptic number.

It is an amenable number.

31032330113321 is a deficient number, since it is larger than the sum of its proper divisors (284700276379).

31032330113321 is a wasteful number, since it uses less digits than its factorization.

31032330113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284700276378.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31032330113321 its reverse (12331103323013), we get a palindrome (43363433436334).

The spelling of 31032330113321 in words is "thirty-one trillion, thirty-two billion, three hundred thirty million, one hundred thirteen thousand, three hundred twenty-one".