1101199999 has 8 divisors (see below), whose sum is σ = 1120018592. Its totient is φ = 1082406240.

The previous prime is 1101199997. The next prime is 1101200033. The reversal of 1101199999 is 9999911011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101199999 - 2¹ = 1101199997 is a prime.

It is a Duffinian number.

1101199999 is a modest number, since divided by 99999 gives 11011 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101199993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97942 + ... + 108604.

It is an arithmetic number, because the mean of its divisors is an integer number (140002324).

Almost surely, 2^1101199999 is an apocalyptic number.

1101199999 is a deficient number, since it is larger than the sum of its proper divisors (18818593).

1101199999 is a wasteful number, since it uses less digits than its factorization.

1101199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12417.

The product of its (nonzero) digits is 59049, while the sum is 49.

The square root of 1101199999 is about 33184.3336380287. Note that the first 3 decimals coincide. The cubic root of 1101199999 is about 1032.6553533140.

The spelling of 1101199999 in words is "one billion, one hundred one million, one hundred ninety-nine thousand, nine hundred ninety-nine".