23023011121111 has 4 divisors (see below), whose sum is σ = 23026558040424. Its totient is φ = 23019464201800.

The previous prime is 23023011121067. The next prime is 23023011121139. The reversal of 23023011121111 is 11112111032032.

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 23023011121111 - 2¹³ = 23023011112919 is a prime.

It is a super-5 number, since 5×23023011121111⁵ (a number of 68 digits) contains 55555 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 (23023011121141) 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, 1773449920 + ... + 1773462901.

It is an arithmetic number, because the mean of its divisors is an integer number (5756639510106).

Almost surely, 2^{23023011121111} is an apocalyptic number.

23023011121111 is a deficient number, since it is larger than the sum of its proper divisors (3546919313).

23023011121111 is an equidigital number, since it uses as much as digits as its factorization.

23023011121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546919312.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 23023011121111 its reverse (11112111032032), we get a palindrome (34135122153143).

The spelling of 23023011121111 in words is "twenty-three trillion, twenty-three billion, eleven million, one hundred twenty-one thousand, one hundred eleven".