111345123390 has 64 divisors (see below), whose sum is σ = 271545051456. Its totient is φ = 29215936512.

The previous prime is 111345123389. The next prime is 111345123401. The reversal of 111345123390 is 93321543111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392844 + ... + 614016.

It is an arithmetic number, because the mean of its divisors is an integer number (4242891429).

Almost surely, 2^111345123390 is an apocalyptic number.

111345123390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111345123390 is an abundant number, since it is smaller than the sum of its proper divisors (160199928066).

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

111345123390 is a wasteful number, since it uses less digits than its factorization.

111345123390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221453.

The product of its (nonzero) digits is 9720, while the sum is 33.

The spelling of 111345123390 in words is "one hundred eleven billion, three hundred forty-five million, one hundred twenty-three thousand, three hundred ninety".