1099129913 has 16 divisors (see below), whose sum is σ = 1275715584. Its totient is φ = 927475920.

The previous prime is 1099129909. The next prime is 1099129919. The reversal of 1099129913 is 3199219901.

It is not a de Polignac number, because 1099129913 - 2² = 1099129909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099129919) 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, 479456 + ... + 481742.

It is an arithmetic number, because the mean of its divisors is an integer number (79732224).

Almost surely, 2^1099129913 is an apocalyptic number.

It is an amenable number.

1099129913 is a deficient number, since it is larger than the sum of its proper divisors (176585671).

1099129913 is an equidigital number, since it uses as much as digits as its factorization.

1099129913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332.

The product of its (nonzero) digits is 39366, while the sum is 44.

The square root of 1099129913 is about 33153.1282536053. The cubic root of 1099129913 is about 1032.0078698722.

It can be divided in two parts, 10991 and 29913, that added together give a palindrome (40904).

The spelling of 1099129913 in words is "one billion, ninety-nine million, one hundred twenty-nine thousand, nine hundred thirteen".