111101220020023 has 4 divisors (see below), whose sum is σ = 111103425203488. Its totient is φ = 111099014836560.

The previous prime is 111101220020003. The next prime is 111101220020041. The reversal of 111101220020023 is 320020022101111.

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 111101220020023 - 2⁵ = 111101220019991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111101220019979 and 111101220020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101220020003) 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, 1102516158 + ... + 1102616923.

It is an arithmetic number, because the mean of its divisors is an integer number (27775856300872).

Almost surely, 2^{111101220020023} is an apocalyptic number.

111101220020023 is a deficient number, since it is larger than the sum of its proper divisors (2205183465).

111101220020023 is an equidigital number, since it uses as much as digits as its factorization.

111101220020023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205183464.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111101220020023 its reverse (320020022101111), we get a palindrome (431121242121134).

The spelling of 111101220020023 in words is "one hundred eleven trillion, one hundred one billion, two hundred twenty million, twenty thousand, twenty-three".