23230321291 has 4 divisors (see below), whose sum is σ = 24452969800. Its totient is φ = 22007672784.

The previous prime is 23230321229. The next prime is 23230321319. The reversal of 23230321291 is 19212303232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23230321291 - 2⁹ = 23230320779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23230361291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611324226 + ... + 611324263.

It is an arithmetic number, because the mean of its divisors is an integer number (6113242450).

Almost surely, 2^23230321291 is an apocalyptic number.

23230321291 is a deficient number, since it is larger than the sum of its proper divisors (1222648509).

23230321291 is a wasteful number, since it uses less digits than its factorization.

23230321291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222648508.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 23230321291 in words is "twenty-three billion, two hundred thirty million, three hundred twenty-one thousand, two hundred ninety-one".