111000111010998 has 128 divisors (see below), whose sum is σ = 264033520128000. Its totient is φ = 30730551143040.

The previous prime is 111000111010993. The next prime is 111000111011057. The reversal of 111000111010998 is 899010111000111.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000111010993) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28692061 + ... + 32330087.

It is an arithmetic number, because the mean of its divisors is an integer number (2062761876000).

Almost surely, 2^{111000111010998} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111000111010998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132016760064000).

111000111010998 is an abundant number, since it is smaller than the sum of its proper divisors (153033409117002).

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

111000111010998 is a wasteful number, since it uses less digits than its factorization.

111000111010998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638930.

The product of its (nonzero) digits is 648, while the sum is 33.

The spelling of 111000111010998 in words is "one hundred eleven trillion, one hundred eleven million, ten thousand, nine hundred ninety-eight".