20233332993 has 4 divisors (see below), whose sum is σ = 26977777328. Its totient is φ = 13488888660.

The previous prime is 20233332989. The next prime is 20233333027. The reversal of 20233332993 is 39923333202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20233332993 - 2² = 20233332989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20233332923) 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, 3372222163 + ... + 3372222168.

It is an arithmetic number, because the mean of its divisors is an integer number (6744444332).

Almost surely, 2^20233332993 is an apocalyptic number.

It is an amenable number.

20233332993 is a deficient number, since it is larger than the sum of its proper divisors (6744444335).

20233332993 is an equidigital number, since it uses as much as digits as its factorization.

20233332993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744444334.

The product of its (nonzero) digits is 157464, while the sum is 39.

The spelling of 20233332993 in words is "twenty billion, two hundred thirty-three million, three hundred thirty-two thousand, nine hundred ninety-three".