111377309190 has 96 divisors (see below), whose sum is σ = 311222145024. Its totient is φ = 25435166400.

The previous prime is 111377309189. The next prime is 111377309243. The reversal of 111377309190 is 91903773111.

It is a super-2 number, since 2×111377309190² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1659057 + ... + 1724883.

It is an arithmetic number, because the mean of its divisors is an integer number (3241897344).

Almost surely, 2^111377309190 is an apocalyptic number.

111377309190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111377309190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155611072512).

111377309190 is an abundant number, since it is smaller than the sum of its proper divisors (199844835834).

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

111377309190 is a wasteful number, since it uses less digits than its factorization.

111377309190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67002 (or 66995 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 42.

The spelling of 111377309190 in words is "one hundred eleven billion, three hundred seventy-seven million, three hundred nine thousand, one hundred ninety".