1123423412 has 12 divisors (see below), whose sum is σ = 2069464320. Its totient is φ = 532147896.

The previous prime is 1123423409. The next prime is 1123423447. The reversal of 1123423412 is 2143243211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7390868 + ... + 7391019.

It is an arithmetic number, because the mean of its divisors is an integer number (172455360).

Almost surely, 2^1123423412 is an apocalyptic number.

It is an amenable number.

1123423412 is a deficient number, since it is larger than the sum of its proper divisors (946040908).

1123423412 is a wasteful number, since it uses less digits than its factorization.

1123423412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14781910 (or 14781908 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1123423412 is about 33517.5090363231. The cubic root of 1123423412 is about 1039.5558421431. Note that the first 3 decimals are identical.

Adding to 1123423412 its reverse (2143243211), we get a palindrome (3266666623).

The spelling of 1123423412 in words is "one billion, one hundred twenty-three million, four hundred twenty-three thousand, four hundred twelve".