31320023001001 has 4 divisors (see below), whose sum is σ = 35794312001152. Its totient is φ = 26845734000852.

The previous prime is 31320023000983. The next prime is 31320023001023. The reversal of 31320023001001 is 10010032002313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31320023001001 - 2⁵ = 31320023000969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31320023001061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237144500065 + ... + 2237144500078.

It is an arithmetic number, because the mean of its divisors is an integer number (8948578000288).

Almost surely, 2^{31320023001001} is an apocalyptic number.

It is an amenable number.

31320023001001 is a deficient number, since it is larger than the sum of its proper divisors (4474289000151).

31320023001001 is an equidigital number, since it uses as much as digits as its factorization.

31320023001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474289000150.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31320023001001 its reverse (10010032002313), we get a palindrome (41330055003314).

The spelling of 31320023001001 in words is "thirty-one trillion, three hundred twenty billion, twenty-three million, one thousand, one".