23120213012111 has 4 divisors (see below), whose sum is σ = 23120237820000. Its totient is φ = 23120188204224.

The previous prime is 23120213012059. The next prime is 23120213012137. The reversal of 23120213012111 is 11121031202132.

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 23120213012111 - 2²² = 23120208817807 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 (23120213002111) 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, 10949111 + ... + 12888888.

It is an arithmetic number, because the mean of its divisors is an integer number (5780059455000).

Almost surely, 2^{23120213012111} is an apocalyptic number.

23120213012111 is a deficient number, since it is larger than the sum of its proper divisors (24807889).

23120213012111 is an equidigital number, since it uses as much as digits as its factorization.

23120213012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24807888.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 23120213012111 its reverse (11121031202132), we get a palindrome (34241244214243).

The spelling of 23120213012111 in words is "twenty-three trillion, one hundred twenty billion, two hundred thirteen million, twelve thousand, one hundred eleven".