23145213999 has 8 divisors (see below), whose sum is σ = 30862823472. Its totient is φ = 15428873600.

The previous prime is 23145213997. The next prime is 23145214007. The reversal of 23145213999 is 99931254132.

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

It is a cyclic number.

It is not a de Polignac number, because 23145213999 - 2¹ = 23145213997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145213997) 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, 273864 + ... + 348269.

It is an arithmetic number, because the mean of its divisors is an integer number (3857852934).

Almost surely, 2^23145213999 is an apocalyptic number.

23145213999 is a deficient number, since it is larger than the sum of its proper divisors (7717609473).

23145213999 is a wasteful number, since it uses less digits than its factorization.

23145213999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634537.

The product of its digits is 524880, while the sum is 48.

The spelling of 23145213999 in words is "twenty-three billion, one hundred forty-five million, two hundred thirteen thousand, nine hundred ninety-nine".