23820014321 has 4 divisors (see below), whose sum is σ = 25221191652. Its totient is φ = 22418836992.

The previous prime is 23820014311. The next prime is 23820014333. The reversal of 23820014321 is 12341002832.

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 15040324321 + 8779690000 = 122639^2 + 93700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23820014321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23820014311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700588640 + ... + 700588673.

It is an arithmetic number, because the mean of its divisors is an integer number (6305297913).

Almost surely, 2^23820014321 is an apocalyptic number.

It is an amenable number.

23820014321 is a deficient number, since it is larger than the sum of its proper divisors (1401177331).

23820014321 is a wasteful number, since it uses less digits than its factorization.

23820014321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401177330.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 23820014321 in words is "twenty-three billion, eight hundred twenty million, fourteen thousand, three hundred twenty-one".