31230022320331 has 8 divisors (see below), whose sum is σ = 31768110984960. Its totient is φ = 30692225864232.

The previous prime is 31230022320307. The next prime is 31230022320337. The reversal of 31230022320331 is 13302322003213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31230022320331 - 2⁴¹ = 29030999064779 is a prime.

It is a super-2 number, since 2×31230022320331² (a number of 28 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 = 31230022320296 and 31230022320305.

It is not an unprimeable number, because it can be changed into a prime (31230022320337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72836535 + ... + 73264048.

It is an arithmetic number, because the mean of its divisors is an integer number (3971013873120).

Almost surely, 2^{31230022320331} is an apocalyptic number.

31230022320331 is a deficient number, since it is larger than the sum of its proper divisors (538088664629).

31230022320331 is a wasteful number, since it uses less digits than its factorization.

31230022320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146104265.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31230022320331 its reverse (13302322003213), we get a palindrome (44532344323544).

The spelling of 31230022320331 in words is "thirty-one trillion, two hundred thirty billion, twenty-two million, three hundred twenty thousand, three hundred thirty-one".