31233022120009 has 4 divisors (see below), whose sum is σ = 31245944349204. Its totient is φ = 31220099890816.

The previous prime is 31233022119979. The next prime is 31233022120031. The reversal of 31233022120009 is 90002122033213.

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 30011935239225 + 1221086880784 = 5478315^2 + 1105028^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233022120009 - 2²¹ = 31233020022857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31233022129009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6461110972 + ... + 6461115805.

It is an arithmetic number, because the mean of its divisors is an integer number (7811486087301).

Almost surely, 2^{31233022120009} is an apocalyptic number.

It is an amenable number.

31233022120009 is a deficient number, since it is larger than the sum of its proper divisors (12922229195).

31233022120009 is a wasteful number, since it uses less digits than its factorization.

31233022120009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12922229194.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 31233022120009 in words is "thirty-one trillion, two hundred thirty-three billion, twenty-two million, one hundred twenty thousand, nine".