1123020344 has 16 divisors (see below), whose sum is σ = 2111166720. Its totient is φ = 560042560.

The previous prime is 1123020343. The next prime is 1123020347. The reversal of 1123020344 is 4430203211.

It is a super-2 number, since 2×1123020344² = 2522349386075756672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123020343) 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, 180197 + ... + 186324.

It is an arithmetic number, because the mean of its divisors is an integer number (131947920).

Almost surely, 2^1123020344 is an apocalyptic number.

It is an amenable number.

1123020344 is a deficient number, since it is larger than the sum of its proper divisors (988146376).

1123020344 is a wasteful number, since it uses less digits than its factorization.

1123020344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366910 (or 366906 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1123020344 is about 33511.4956992373. The cubic root of 1123020344 is about 1039.4315014266.

Adding to 1123020344 its reverse (4430203211), we get a palindrome (5553223555).

The spelling of 1123020344 in words is "one billion, one hundred twenty-three million, twenty thousand, three hundred forty-four".