1121423432 has 16 divisors (see below), whose sum is σ = 2103464700. Its totient is φ = 560499520.

The previous prime is 1121423389. The next prime is 1121423447. The reversal of 1121423432 is 2343241211.

It can be written as a sum of positive squares in 2 ways, for example, as 1109822596 + 11600836 = 33314^2 + 3406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121423398 and 1121423407.

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, 2819 + ... + 47442.

Almost surely, 2^1121423432 is an apocalyptic number.

It is an amenable number.

1121423432 is a deficient number, since it is larger than the sum of its proper divisors (982041268).

1121423432 is a wasteful number, since it uses less digits than its factorization.

1121423432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53056 (or 53052 counting only the distinct ones).

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

The square root of 1121423432 is about 33487.6608917374. The cubic root of 1121423432 is about 1038.9385842558.

Adding to 1121423432 its reverse (2343241211), we get a palindrome (3464664643).

The spelling of 1121423432 in words is "one billion, one hundred twenty-one million, four hundred twenty-three thousand, four hundred thirty-two".