31321330023 has 8 divisors (see below), whose sum is σ = 42549731568. Its totient is φ = 20486907584.

The previous prime is 31321329953. The next prime is 31321330067. The reversal of 31321330023 is 32003312313.

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 31321330023 - 2²⁸ = 31052894567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321330093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98494590 + ... + 98494907.

It is an arithmetic number, because the mean of its divisors is an integer number (5318716446).

Almost surely, 2^31321330023 is an apocalyptic number.

31321330023 is a deficient number, since it is larger than the sum of its proper divisors (11228401545).

31321330023 is a wasteful number, since it uses less digits than its factorization.

31321330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196989553.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31321330023 its reverse (32003312313), we get a palindrome (63324642336).

The spelling of 31321330023 in words is "thirty-one billion, three hundred twenty-one million, three hundred thirty thousand, twenty-three".