1323951523 has 2 divisors, whose sum is σ = 1323951524. Its totient is φ = 1323951522.

The previous prime is 1323951491. The next prime is 1323951533. The reversal of 1323951523 is 3251593231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323951523 - 2⁵ = 1323951491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323951533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661975761 + 661975762.

It is an arithmetic number, because the mean of its divisors is an integer number (661975762).

Almost surely, 2^1323951523 is an apocalyptic number.

1323951523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323951523 is an equidigital number, since it uses as much as digits as its factorization.

1323951523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 34.

The square root of 1323951523 is about 36386.1446569982. The cubic root of 1323951523 is about 1098.0548331226.

The spelling of 1323951523 in words is "one billion, three hundred twenty-three million, nine hundred fifty-one thousand, five hundred twenty-three".