23451002309 has 8 divisors (see below), whose sum is σ = 26824439808. Its totient is φ = 20083388400.

The previous prime is 23451002303. The next prime is 23451002353. The reversal of 23451002309 is 90320015432.

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 23451002309 - 2²⁰ = 23449953733 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 (23451002303) 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, 1447262 + ... + 1463375.

It is an arithmetic number, because the mean of its divisors is an integer number (3353054976).

Almost surely, 2^23451002309 is an apocalyptic number.

It is an amenable number.

23451002309 is a deficient number, since it is larger than the sum of its proper divisors (3373437499).

23451002309 is a wasteful number, since it uses less digits than its factorization.

23451002309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911795.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 23451002309 in words is "twenty-three billion, four hundred fifty-one million, two thousand, three hundred nine".