1011099983 has 4 divisors (see below), whose sum is σ = 1011218208. Its totient is φ = 1010981760.

The previous prime is 1011099961. The next prime is 1011099989. The reversal of 1011099983 is 3899901101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011099983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011099983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011099989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45191 + ... + 63752.

It is an arithmetic number, because the mean of its divisors is an integer number (252804552).

Almost surely, 2^1011099983 is an apocalyptic number.

1011099983 is a deficient number, since it is larger than the sum of its proper divisors (118225).

1011099983 is an equidigital number, since it uses as much as digits as its factorization.

1011099983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118224.

The product of its (nonzero) digits is 17496, while the sum is 41.

The square root of 1011099983 is about 31797.7983986313. The cubic root of 1011099983 is about 1003.6863881769.

The spelling of 1011099983 in words is "one billion, eleven million, ninety-nine thousand, nine hundred eighty-three".