320130331201031 has 24 divisors (see below), whose sum is σ = 347656358511360. Its totient is φ = 294647331247776.

The previous prime is 320130331201027. The next prime is 320130331201039. The reversal of 320130331201031 is 130102133031023.

It is not a de Polignac number, because 320130331201031 - 2² = 320130331201027 is a prime.

It is a super-2 number, since 2×320130331201031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320130331200988 and 320130331201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320130331201039) 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, 350532116 + ... + 351444198.

It is an arithmetic number, because the mean of its divisors is an integer number (14485681604640).

Almost surely, 2^{320130331201031} is an apocalyptic number.

320130331201031 is a deficient number, since it is larger than the sum of its proper divisors (27526027310329).

320130331201031 is a wasteful number, since it uses less digits than its factorization.

320130331201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918135 (or 918122 counting only the distinct ones).

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

Adding to 320130331201031 its reverse (130102133031023), we get a palindrome (450232464232054).

The spelling of 320130331201031 in words is "three hundred twenty trillion, one hundred thirty billion, three hundred thirty-one million, two hundred one thousand, thirty-one".