23202011309 has 4 divisors (see below), whose sum is σ = 23323488000. Its totient is φ = 23080534620.

The previous prime is 23202011303. The next prime is 23202011317. The reversal of 23202011309 is 90311020232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23202011309 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 (23202011303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60738059 + ... + 60738440.

It is an arithmetic number, because the mean of its divisors is an integer number (5830872000).

Almost surely, 2^23202011309 is an apocalyptic number.

It is an amenable number.

23202011309 is a deficient number, since it is larger than the sum of its proper divisors (121476691).

23202011309 is a wasteful number, since it uses less digits than its factorization.

23202011309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121476690.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 23202011309 in words is "twenty-three billion, two hundred two million, eleven thousand, three hundred nine".