23120231122111 has 2 divisors, whose sum is σ = 23120231122112. Its totient is φ = 23120231122110.

The previous prime is 23120231122081. The next prime is 23120231122171. The reversal of 23120231122111 is 11122113202132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23120231122111 - 2⁹ = 23120231121599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120231122171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560115561055 + 11560115561056.

It is an arithmetic number, because the mean of its divisors is an integer number (11560115561056).

Almost surely, 2^{23120231122111} is an apocalyptic number.

23120231122111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120231122111 is an equidigital number, since it uses as much as digits as its factorization.

23120231122111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 23120231122111 its reverse (11122113202132), we get a palindrome (34242344324243).

The spelling of 23120231122111 in words is "twenty-three trillion, one hundred twenty billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred eleven".