111222031023 has 12 divisors (see below), whose sum is σ = 164390185960. Its totient is φ = 72423647856.

The previous prime is 111222031013. The next prime is 111222031027. The reversal of 111222031023 is 320130222111.

111222031023 is a `hidden beast` number, since 1 + 112 + 220 + 310 + 23 = 666.

It is not a de Polignac number, because 111222031023 - 2²⁴ = 111205253807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111222030987 and 111222031005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222031027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143697328 + ... + 143698101.

Almost surely, 2^111222031023 is an apocalyptic number.

111222031023 is a deficient number, since it is larger than the sum of its proper divisors (53168154937).

111222031023 is a wasteful number, since it uses less digits than its factorization.

111222031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287395478 (or 287395475 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111222031023 its reverse (320130222111), we get a palindrome (431352253134).

The spelling of 111222031023 in words is "one hundred eleven billion, two hundred twenty-two million, thirty-one thousand, twenty-three".