1123242319 has 4 divisors (see below), whose sum is σ = 1127717640. Its totient is φ = 1118767000.

The previous prime is 1123242317. The next prime is 1123242353. The reversal of 1123242319 is 9132423211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9132423211 = 10243 ⋅891577.

It is a cyclic number.

It is not a de Polignac number, because 1123242319 - 2¹ = 1123242317 is a prime.

It is a super-2 number, since 2×1123242319² = 2523346614384995522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123242317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237284 + ... + 2237785.

It is an arithmetic number, because the mean of its divisors is an integer number (281929410).

Almost surely, 2^1123242319 is an apocalyptic number.

1123242319 is a deficient number, since it is larger than the sum of its proper divisors (4475321).

1123242319 is an equidigital number, since it uses as much as digits as its factorization.

1123242319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475320.

The product of its digits is 2592, while the sum is 28.

The square root of 1123242319 is about 33514.8074587935. The cubic root of 1123242319 is about 1039.4999812212.

The spelling of 1123242319 in words is "one billion, one hundred twenty-three million, two hundred forty-two thousand, three hundred nineteen".