111423620 has 48 divisors (see below), whose sum is σ = 291731328. Its totient is φ = 34728960.

The previous prime is 111423589. The next prime is 111423643. The reversal of 111423620 is 26324111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111423592 and 111423601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34637 + ... + 37716.

It is an arithmetic number, because the mean of its divisors is an integer number (6077736).

Almost surely, 2^111423620 is an apocalyptic number.

111423620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111423620 is an abundant number, since it is smaller than the sum of its proper divisors (180307708).

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

111423620 is a wasteful number, since it uses less digits than its factorization.

111423620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72380 (or 72378 counting only the distinct ones).

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

The square root of 111423620 is about 10555.7387235570. The cubic root of 111423620 is about 481.2001506808.

Adding to 111423620 its reverse (26324111), we get a palindrome (137747731).

The spelling of 111423620 in words is "one hundred eleven million, four hundred twenty-three thousand, six hundred twenty".