1110990231990 has 160 divisors (see below), whose sum is σ = 3119094703296. Its totient is φ = 283211976960.

The previous prime is 1110990231983. The next prime is 1110990232111. The reversal of 1110990231990 is 991320990111.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 32417704 + ... + 32451956.

Almost surely, 2^{1110990231990} is an apocalyptic number.

1110990231990 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 1110990231990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559547351648).

1110990231990 is an abundant number, since it is smaller than the sum of its proper divisors (2008104471306).

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

1110990231990 is a wasteful number, since it uses less digits than its factorization.

1110990231990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36036 (or 36027 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 45.

The spelling of 1110990231990 in words is "one trillion, one hundred ten billion, nine hundred ninety million, two hundred thirty-one thousand, nine hundred ninety".