1099996431 has 16 divisors (see below), whose sum is σ = 1558851840. Its totient is φ = 687985920.

The previous prime is 1099996423. The next prime is 1099996433. The reversal of 1099996431 is 1346999901.

It is not a de Polignac number, because 1099996431 - 2³ = 1099996423 is a prime.

It is a super-2 number, since 2×1099996431² = 2419984296425475522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099996433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87810 + ... + 99551.

It is an arithmetic number, because the mean of its divisors is an integer number (97428240).

Almost surely, 2^1099996431 is an apocalyptic number.

1099996431 is a deficient number, since it is larger than the sum of its proper divisors (458855409).

1099996431 is a wasteful number, since it uses less digits than its factorization.

1099996431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187486.

The product of its (nonzero) digits is 472392, while the sum is 51.

The square root of 1099996431 is about 33166.1940988109. The cubic root of 1099996431 is about 1032.2789990286.

The spelling of 1099996431 in words is "one billion, ninety-nine million, nine hundred ninety-six thousand, four hundred thirty-one".