111221223023 has 8 divisors (see below), whose sum is σ = 115064050080. Its totient is φ = 107378903520.

The previous prime is 111221223013. The next prime is 111221223131. The reversal of 111221223023 is 320322122111.

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 111221223023 - 2³² = 106926255727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111221222986 and 111221223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221223013) 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, 349286 + ... + 586892.

It is an arithmetic number, because the mean of its divisors is an integer number (14383006260).

Almost surely, 2^111221223023 is an apocalyptic number.

111221223023 is a deficient number, since it is larger than the sum of its proper divisors (3842827057).

111221223023 is a wasteful number, since it uses less digits than its factorization.

111221223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253777.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111221223023 its reverse (320322122111), we get a palindrome (431543345134).

The spelling of 111221223023 in words is "one hundred eleven billion, two hundred twenty-one million, two hundred twenty-three thousand, twenty-three".