1100020992 has 108 divisors (see below), whose sum is σ = 3405761856. Its totient is φ = 314280960.

The previous prime is 1100020981. The next prime is 1100021003. The reversal of 1100020992 is 2990200011.

It is an interprime number because it is at equal distance from previous prime (1100020981) and next prime (1100021003).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23017 + ... + 52247.

It is an arithmetic number, because the mean of its divisors is an integer number (31534832).

Almost surely, 2^1100020992 is an apocalyptic number.

1100020992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100020992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1702880928).

1100020992 is an abundant number, since it is smaller than the sum of its proper divisors (2305740864).

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

1100020992 is an equidigital number, since it uses as much as digits as its factorization.

1100020992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29264 (or 29243 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1100020992 is about 33166.5643683514. The cubic root of 1100020992 is about 1032.2866819674.

The spelling of 1100020992 in words is "one billion, one hundred million, twenty thousand, nine hundred ninety-two".