23030021111 has 16 divisors (see below), whose sum is σ = 24710430240. Its totient is φ = 21420604800.

The previous prime is 23030021107. The next prime is 23030021143. The reversal of 23030021111 is 11112003032.

It is a cyclic number.

It is not a de Polignac number, because 23030021111 - 2² = 23030021107 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 (23030021101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120 + ... + 214626.

It is an arithmetic number, because the mean of its divisors is an integer number (1544401890).

Almost surely, 2^23030021111 is an apocalyptic number.

23030021111 is a deficient number, since it is larger than the sum of its proper divisors (1680409129).

23030021111 is a wasteful number, since it uses less digits than its factorization.

23030021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212674.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 23030021111 its reverse (11112003032), we get a palindrome (34142024143).

The spelling of 23030021111 in words is "twenty-three billion, thirty million, twenty-one thousand, one hundred eleven".