111231120023 has 8 divisors (see below), whose sum is σ = 111883131696. Its totient is φ = 110579212800.

The previous prime is 111231119977. The next prime is 111231120031. The reversal of 111231120023 is 320021132111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111231120023 - 2⁸ = 111231119767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111231119983 and 111231120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231120083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3471908 + ... + 3503798.

It is an arithmetic number, because the mean of its divisors is an integer number (13985391462).

Almost surely, 2^111231120023 is an apocalyptic number.

111231120023 is a deficient number, since it is larger than the sum of its proper divisors (652011673).

111231120023 is a wasteful number, since it uses less digits than its factorization.

111231120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52225.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111231120023 its reverse (320021132111), we get a palindrome (431252252134).

The spelling of 111231120023 in words is "one hundred eleven billion, two hundred thirty-one million, one hundred twenty thousand, twenty-three".