111111900030 has 48 divisors (see below), whose sum is σ = 288912615264. Its totient is φ = 29627616960.

The previous prime is 111111900001. The next prime is 111111900089. The reversal of 111111900030 is 30009111111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111111899976 and 111111900012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1414447 + ... + 1490933.

It is an arithmetic number, because the mean of its divisors is an integer number (6019012818).

Almost surely, 2^111111900030 is an apocalyptic number.

111111900030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111111900030 is an abundant number, since it is smaller than the sum of its proper divisors (177800715234).

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

111111900030 is a wasteful number, since it uses less digits than its factorization.

111111900030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92641 (or 92638 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 18.

The spelling of 111111900030 in words is "one hundred eleven billion, one hundred eleven million, nine hundred thousand, thirty".