1102012110991 has 16 divisors (see below), whose sum is σ = 1274989046688. Its totient is φ = 941359795200.

The previous prime is 1102012110919. The next prime is 1102012111003. The reversal of 1102012110991 is 1990112102011.

It is a happy number.

It is not a de Polignac number, because 1102012110991 - 2⁷ = 1102012110863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102012110791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4692150 + ... + 4921411.

It is an arithmetic number, because the mean of its divisors is an integer number (79686815418).

Almost surely, 2^{1102012110991} is an apocalyptic number.

1102012110991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1102012110991 is a deficient number, since it is larger than the sum of its proper divisors (172976935697).

1102012110991 is a wasteful number, since it uses less digits than its factorization.

1102012110991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9614202.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 1102012110991 in words is "one trillion, one hundred two billion, twelve million, one hundred ten thousand, nine hundred ninety-one".