23503298399 has 12 divisors (see below), whose sum is σ = 27343075104. Its totient is φ = 20143839744.

The previous prime is 23503298393. The next prime is 23503298407. The reversal of 23503298399 is 99389230532.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-23503298399 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 23503298399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23503298393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 985514 + ... + 1009080.

It is an arithmetic number, because the mean of its divisors is an integer number (2278589592).

Almost surely, 2^23503298399 is an apocalyptic number.

23503298399 is a deficient number, since it is larger than the sum of its proper divisors (3839776705).

23503298399 is a wasteful number, since it uses less digits than its factorization.

23503298399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43934 (or 43927 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 53.

The spelling of 23503298399 in words is "twenty-three billion, five hundred three million, two hundred ninety-eight thousand, three hundred ninety-nine".