23021023111 has 8 divisors (see below), whose sum is σ = 23050184400. Its totient is φ = 22991881920.

The previous prime is 23021023079. The next prime is 23021023163. The reversal of 23021023111 is 11132012032.

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 23021023111 - 2⁵ = 23021023079 is a prime.

It is a super-2 number, since 2×23021023111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021023411) 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 7 ways as a sum of consecutive naturals, for example, 4159416 + ... + 4164946.

It is an arithmetic number, because the mean of its divisors is an integer number (2881273050).

Almost surely, 2^23021023111 is an apocalyptic number.

23021023111 is a deficient number, since it is larger than the sum of its proper divisors (29161289).

23021023111 is a wasteful number, since it uses less digits than its factorization.

23021023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10049.

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

Adding to 23021023111 its reverse (11132012032), we get a palindrome (34153035143).

The spelling of 23021023111 in words is "twenty-three billion, twenty-one million, twenty-three thousand, one hundred eleven".