1097331923 has 2 divisors, whose sum is σ = 1097331924. Its totient is φ = 1097331922.

The previous prime is 1097331919. The next prime is 1097331931. The reversal of 1097331923 is 3291337901.

It is a weak prime.

It is an emirp because it is prime and its reverse (3291337901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1097331923 - 2² = 1097331919 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1097331953) 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, 548665961 + 548665962.

It is an arithmetic number, because the mean of its divisors is an integer number (548665962).

Almost surely, 2^1097331923 is an apocalyptic number.

1097331923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097331923 is an equidigital number, since it uses as much as digits as its factorization.

1097331923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 1097331923 is about 33126.0007094125. Note that the first 3 decimals coincide. The cubic root of 1097331923 is about 1031.4448328398. Note that the first 3 decimals are identical.

The spelling of 1097331923 in words is "one billion, ninety-seven million, three hundred thirty-one thousand, nine hundred twenty-three".