318544012093 has 2 divisors, whose sum is σ = 318544012094. Its totient is φ = 318544012092.

The previous prime is 318544012063. The next prime is 318544012097. The reversal of 318544012093 is 390210445813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258107689849 + 60436322244 = 508043^2 + 245838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318544012093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318544012097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159272006046 + 159272006047.

It is an arithmetic number, because the mean of its divisors is an integer number (159272006047).

Almost surely, 2^318544012093 is an apocalyptic number.

It is an amenable number.

318544012093 is a deficient number, since it is larger than the sum of its proper divisors (1).

318544012093 is an equidigital number, since it uses as much as digits as its factorization.

318544012093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 318544012093 in words is "three hundred eighteen billion, five hundred forty-four million, twelve thousand, ninety-three".