1231736323 has 2 divisors, whose sum is σ = 1231736324. Its totient is φ = 1231736322.

The previous prime is 1231736291. The next prime is 1231736347. The reversal of 1231736323 is 3236371321.

It is a strong prime.

It is an emirp because it is prime and its reverse (3236371321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231736323 - 2⁵ = 1231736291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231736353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615868161 + 615868162.

It is an arithmetic number, because the mean of its divisors is an integer number (615868162).

Almost surely, 2^1231736323 is an apocalyptic number.

1231736323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231736323 is an equidigital number, since it uses as much as digits as its factorization.

1231736323 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 1231736323 is about 35096.1012507087. The cubic root of 1231736323 is about 1071.9451974449.

The spelling of 1231736323 in words is "one billion, two hundred thirty-one million, seven hundred thirty-six thousand, three hundred twenty-three".