111202031023 has 4 divisors (see below), whose sum is σ = 111243854680. Its totient is φ = 111160207368.

The previous prime is 111202031011. The next prime is 111202031029. The reversal of 111202031023 is 320130202111.

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 111202031023 - 2⁵ = 111202030991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111202030988 and 111202031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202031029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20907840 + ... + 20913157.

It is an arithmetic number, because the mean of its divisors is an integer number (27810963670).

Almost surely, 2^111202031023 is an apocalyptic number.

111202031023 is a deficient number, since it is larger than the sum of its proper divisors (41823657).

111202031023 is an equidigital number, since it uses as much as digits as its factorization.

111202031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41823656.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 111202031023 its reverse (320130202111), we get a palindrome (431332233134).

The spelling of 111202031023 in words is "one hundred eleven billion, two hundred two million, thirty-one thousand, twenty-three".