1100100099 has 16 divisors (see below), whose sum is σ = 1687025408. Its totient is φ = 624622752.

The previous prime is 1100100091. The next prime is 1100100121. The reversal of 1100100099 is 9900010011.

It is not a de Polignac number, because 1100100099 - 2³ = 1100100091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100100091) 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, 163537 + ... + 170130.

It is an arithmetic number, because the mean of its divisors is an integer number (105439088).

Almost surely, 2^1100100099 is an apocalyptic number.

1100100099 is a deficient number, since it is larger than the sum of its proper divisors (586925309).

1100100099 is a wasteful number, since it uses less digits than its factorization.

1100100099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333834.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 1100100099 is about 33167.7569184291. The cubic root of 1100100099 is about 1032.3114266906.

The spelling of 1100100099 in words is "one billion, one hundred million, one hundred thousand, ninety-nine".