1097309803 has 2 divisors, whose sum is σ = 1097309804. Its totient is φ = 1097309802.

The previous prime is 1097309771. The next prime is 1097309839. The reversal of 1097309803 is 3089037901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097309803 - 2⁵ = 1097309771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097300803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548654901 + 548654902.

It is an arithmetic number, because the mean of its divisors is an integer number (548654902).

Almost surely, 2^1097309803 is an apocalyptic number.

1097309803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097309803 is an equidigital number, since it uses as much as digits as its factorization.

1097309803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1097309803 is about 33125.6668310239. Note that the first 3 decimals coincide. The cubic root of 1097309803 is about 1031.4379021769.

The spelling of 1097309803 in words is "one billion, ninety-seven million, three hundred nine thousand, eight hundred three".