22003923013 has 4 divisors (see below), whose sum is σ = 22038251148. Its totient is φ = 21969594880.

The previous prime is 22003922981. The next prime is 22003923031. The reversal of 22003923013 is 31032930022.

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 17901904804 + 4102018209 = 133798^2 + 64047^2 .

It is a cyclic number.

It is not a de Polignac number, because 22003923013 - 2⁵ = 22003922981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003927013) 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, 17163106 + ... + 17164387.

It is an arithmetic number, because the mean of its divisors is an integer number (5509562787).

Almost surely, 2^22003923013 is an apocalyptic number.

It is an amenable number.

22003923013 is a deficient number, since it is larger than the sum of its proper divisors (34328135).

22003923013 is an equidigital number, since it uses as much as digits as its factorization.

22003923013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34328134.

The product of its (nonzero) digits is 1944, while the sum is 25.

The spelling of 22003923013 in words is "twenty-two billion, three million, nine hundred twenty-three thousand, thirteen".