31321322120023 has 8 divisors (see below), whose sum is σ = 33742297936368. Its totient is φ = 28902009638784.

The previous prime is 31321322119993. The next prime is 31321322120069. The reversal of 31321322120023 is 32002122312313.

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 31321322120023 - 2²¹ = 31321320022871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31321322120023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321322126023) 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 7 ways as a sum of consecutive naturals, for example, 415794661 + ... + 415869982.

It is an arithmetic number, because the mean of its divisors is an integer number (4217787242046).

Almost surely, 2^{31321322120023} is an apocalyptic number.

31321322120023 is a deficient number, since it is larger than the sum of its proper divisors (2420975816345).

31321322120023 is a wasteful number, since it uses less digits than its factorization.

31321322120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831667553.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31321322120023 its reverse (32002122312313), we get a palindrome (63323444432336).

The spelling of 31321322120023 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred twenty-two million, one hundred twenty thousand, twenty-three".