111002111023 has 4 divisors (see below), whose sum is σ = 111025236448. Its totient is φ = 110978985600.

The previous prime is 111002110939. The next prime is 111002111063. The reversal of 111002111023 is 320111200111.

It is a happy number.

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 111002111023 - 2²⁵ = 110968556591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111002110994 and 111002111012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002111063) 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, 11555511 + ... + 11565112.

It is an arithmetic number, because the mean of its divisors is an integer number (27756309112).

Almost surely, 2^111002111023 is an apocalyptic number.

111002111023 is a deficient number, since it is larger than the sum of its proper divisors (23125425).

111002111023 is an equidigital number, since it uses as much as digits as its factorization.

111002111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23125424.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111002111023 its reverse (320111200111), we get a palindrome (431113311134).

The spelling of 111002111023 in words is "one hundred eleven billion, two million, one hundred eleven thousand, twenty-three".