23782221321 has 32 divisors (see below), whose sum is σ = 34418442240. Its totient is φ = 14559240384.

The previous prime is 23782221301. The next prime is 23782221347. The reversal of 23782221321 is 12312228732.

It is not a de Polignac number, because 23782221321 - 2¹⁴ = 23782204937 is a prime.

It is a super-2 number, since 2×23782221321² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23782221301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203320 + ... + 298166.

It is an arithmetic number, because the mean of its divisors is an integer number (1075576320).

Almost surely, 2^23782221321 is an apocalyptic number.

It is an amenable number.

23782221321 is a deficient number, since it is larger than the sum of its proper divisors (10636220919).

23782221321 is a wasteful number, since it uses less digits than its factorization.

23782221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95005.

The product of its digits is 16128, while the sum is 33.

The spelling of 23782221321 in words is "twenty-three billion, seven hundred eighty-two million, two hundred twenty-one thousand, three hundred twenty-one".