23030001993 has 8 divisors (see below), whose sum is σ = 30708211168. Its totient is φ = 15352563744.

The previous prime is 23030001989. The next prime is 23030002001. The reversal of 23030001993 is 39910003032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23030001993 - 2² = 23030001989 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 23030001993.

It is not an unprimeable number, because it can be changed into a prime (23030001893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118996 + ... + 245397.

It is an arithmetic number, because the mean of its divisors is an integer number (3838526396).

Almost surely, 2^23030001993 is an apocalyptic number.

It is an amenable number.

23030001993 is a deficient number, since it is larger than the sum of its proper divisors (7678209175).

23030001993 is a wasteful number, since it uses less digits than its factorization.

23030001993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385463.

The product of its (nonzero) digits is 4374, while the sum is 30.

The spelling of 23030001993 in words is "twenty-three billion, thirty million, one thousand, nine hundred ninety-three".