111023420 has 24 divisors (see below), whose sum is σ = 238573104. Its totient is φ = 43376256.

The previous prime is 111023411. The next prime is 111023453. The reversal of 111023420 is 24320111.

It is a junction number, because it is equal to n+sod(n) for n = 111023395 and 111023404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63689 + ... + 65408.

It is an arithmetic number, because the mean of its divisors is an integer number (9940546).

Almost surely, 2^111023420 is an apocalyptic number.

111023420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111023420 is an abundant number, since it is smaller than the sum of its proper divisors (127549684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111023420 is a wasteful number, since it uses less digits than its factorization.

111023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129149 (or 129147 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 111023420 is about 10536.7651582447. The cubic root of 111023420 is about 480.6233510157.

Adding to 111023420 its reverse (24320111), we get a palindrome (135343531).

The spelling of 111023420 in words is "one hundred eleven million, twenty-three thousand, four hundred twenty".