23221010311 has 4 divisors (see below), whose sum is σ = 24586952112. Its totient is φ = 21855068512.

The previous prime is 23221010287. The next prime is 23221010339. The reversal of 23221010311 is 11301012232.

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 23221010311 - 2⁵ = 23221010279 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 (23221010411) 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, 682970875 + ... + 682970908.

It is an arithmetic number, because the mean of its divisors is an integer number (6146738028).

Almost surely, 2^23221010311 is an apocalyptic number.

23221010311 is a deficient number, since it is larger than the sum of its proper divisors (1365941801).

23221010311 is a wasteful number, since it uses less digits than its factorization.

23221010311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365941800.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23221010311 its reverse (11301012232), we get a palindrome (34522022543).

The spelling of 23221010311 in words is "twenty-three billion, two hundred twenty-one million, ten thousand, three hundred eleven".