23203421144 has 8 divisors (see below), whose sum is σ = 43506414660. Its totient is φ = 11601710568.

The previous prime is 23203421123. The next prime is 23203421149. The reversal of 23203421144 is 44112430232.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203421149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1450213814 + ... + 1450213829.

Almost surely, 2^23203421144 is an apocalyptic number.

It is an amenable number.

23203421144 is a deficient number, since it is larger than the sum of its proper divisors (20302993516).

23203421144 is a wasteful number, since it uses less digits than its factorization.

23203421144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900427649 (or 2900427645 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 23203421144 its reverse (44112430232), we get a palindrome (67315851376).

The spelling of 23203421144 in words is "twenty-three billion, two hundred three million, four hundred twenty-one thousand, one hundred forty-four".