1110989121 has 16 divisors (see below), whose sum is σ = 1659661248. Its totient is φ = 655128000.

The previous prime is 1110989111. The next prime is 1110989141. The reversal of 1110989121 is 1219890111.

It is not a de Polignac number, because 1110989121 - 2²⁵ = 1077434689 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1110989111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453730 + ... + 456171.

It is an arithmetic number, because the mean of its divisors is an integer number (103728828).

Almost surely, 2^1110989121 is an apocalyptic number.

1110989121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1110989121 is a deficient number, since it is larger than the sum of its proper divisors (548672127).

1110989121 is a wasteful number, since it uses less digits than its factorization.

1110989121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909952.

The product of its (nonzero) digits is 1296, while the sum is 33.

The square root of 1110989121 is about 33331.5034314386. The cubic root of 1110989121 is about 1035.7062621001.

The spelling of 1110989121 in words is "one billion, one hundred ten million, nine hundred eighty-nine thousand, one hundred twenty-one".