23201230311 has 12 divisors (see below), whose sum is σ = 38300443792. Its totient is φ = 13257845856.

The previous prime is 23201230307. The next prime is 23201230319. The reversal of 23201230311 is 11303210232.

23201230311 is a `hidden beast` number, since 2 + 320 + 1 + 2 + 30 + 311 = 666.

It is not a de Polignac number, because 23201230311 - 2² = 23201230307 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 (23201230319) 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, 184136686 + ... + 184136811.

Almost surely, 2^23201230311 is an apocalyptic number.

23201230311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23201230311 is a deficient number, since it is larger than the sum of its proper divisors (15099213481).

23201230311 is a wasteful number, since it uses less digits than its factorization.

23201230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368273510 (or 368273507 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23201230311 its reverse (11303210232), we get a palindrome (34504440543).

The spelling of 23201230311 in words is "twenty-three billion, two hundred one million, two hundred thirty thousand, three hundred eleven".