1121315423 has 2 divisors, whose sum is σ = 1121315424. Its totient is φ = 1121315422.

The previous prime is 1121315411. The next prime is 1121315513. The reversal of 1121315423 is 3245131211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121315423 - 2¹⁰ = 1121314399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121315023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560657711 + 560657712.

It is an arithmetic number, because the mean of its divisors is an integer number (560657712).

Almost surely, 2^1121315423 is an apocalyptic number.

1121315423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121315423 is an equidigital number, since it uses as much as digits as its factorization.

1121315423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 23.

The square root of 1121315423 is about 33486.0481842812. The cubic root of 1121315423 is about 1038.9052283389.

Adding to 1121315423 its reverse (3245131211), we get a palindrome (4366446634).

The spelling of 1121315423 in words is "one billion, one hundred twenty-one million, three hundred fifteen thousand, four hundred twenty-three".