111197420 has 24 divisors (see below), whose sum is σ = 235224864. Its totient is φ = 44153216.

The previous prime is 111197417. The next prime is 111197473. The reversal of 111197420 is 24791111.

It is a self number, because there is not a number n which added to its sum of digits gives 111197420.

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, 17552 + ... + 23031.

It is an arithmetic number, because the mean of its divisors is an integer number (9801036).

Almost surely, 2^111197420 is an apocalyptic number.

111197420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111197420 is an abundant number, since it is smaller than the sum of its proper divisors (124027444).

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

111197420 is a wasteful number, since it uses less digits than its factorization.

111197420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40729 (or 40727 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 111197420 is about 10545.0187292389. The cubic root of 111197420 is about 480.8743035100.

The spelling of 111197420 in words is "one hundred eleven million, one hundred ninety-seven thousand, four hundred twenty".