1315042823 has 2 divisors, whose sum is σ = 1315042824. Its totient is φ = 1315042822.

The previous prime is 1315042777. The next prime is 1315042853. The reversal of 1315042823 is 3282405131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1315042823 - 2¹⁰ = 1315041799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315042853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657521411 + 657521412.

It is an arithmetic number, because the mean of its divisors is an integer number (657521412).

Almost surely, 2^1315042823 is an apocalyptic number.

1315042823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315042823 is an equidigital number, since it uses as much as digits as its factorization.

1315042823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1315042823 is about 36263.5191756123. The cubic root of 1315042823 is about 1095.5863981732.

Adding to 1315042823 its reverse (3282405131), we get a palindrome (4597447954).

The spelling of 1315042823 in words is "one billion, three hundred fifteen million, forty-two thousand, eight hundred twenty-three".