1273613323 has 2 divisors, whose sum is σ = 1273613324. Its totient is φ = 1273613322.

The previous prime is 1273613317. The next prime is 1273613347. The reversal of 1273613323 is 3233163721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1273613323 - 2²⁹ = 736742411 is a prime.

It is not a weakly prime, because it can be changed into another prime (1273613303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636806661 + 636806662.

It is an arithmetic number, because the mean of its divisors is an integer number (636806662).

Almost surely, 2^1273613323 is an apocalyptic number.

1273613323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273613323 is an equidigital number, since it uses as much as digits as its factorization.

1273613323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 31.

The square root of 1273613323 is about 35687.7194984493. The cubic root of 1273613323 is about 1083.9581901672.

The spelling of 1273613323 in words is "one billion, two hundred seventy-three million, six hundred thirteen thousand, three hundred twenty-three".