23044121990 has 16 divisors (see below), whose sum is σ = 41782191552. Its totient is φ = 9150366144.

The previous prime is 23044121987. The next prime is 23044121993. The reversal of 23044121990 is 9912144032.

It is an interprime number because it is at equal distance from previous prime (23044121987) and next prime (23044121993).

It is a self number, because there is not a number n which added to its sum of digits gives 23044121990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23044121993) 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 7 ways as a sum of consecutive naturals, for example, 8408894 + ... + 8411633.

It is an arithmetic number, because the mean of its divisors is an integer number (2611386972).

Almost surely, 2^23044121990 is an apocalyptic number.

23044121990 is a deficient number, since it is larger than the sum of its proper divisors (18738069562).

23044121990 is a wasteful number, since it uses less digits than its factorization.

23044121990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16820671.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 23044121990 in words is "twenty-three billion, forty-four million, one hundred twenty-one thousand, nine hundred ninety".