1121915423 has 2 divisors, whose sum is σ = 1121915424. Its totient is φ = 1121915422.

The previous prime is 1121915411. The next prime is 1121915429. The reversal of 1121915423 is 3245191211.

It is a strong prime.

It is an emirp because it is prime and its reverse (3245191211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121915423 - 2⁴ = 1121915407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121915429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560957711 + 560957712.

It is an arithmetic number, because the mean of its divisors is an integer number (560957712).

Almost surely, 2^1121915423 is an apocalyptic number.

1121915423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121915423 is an equidigital number, since it uses as much as digits as its factorization.

1121915423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 1121915423 is about 33495.0059411847. The cubic root of 1121915423 is about 1039.0904964554.

The spelling of 1121915423 in words is "one billion, one hundred twenty-one million, nine hundred fifteen thousand, four hundred twenty-three".