1423232120 has 32 divisors (see below), whose sum is σ = 3225322800. Its totient is φ = 565195008.

The previous prime is 1423232117. The next prime is 1423232143. The reversal of 1423232120 is 212323241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1423232092 and 1423232101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122429 + ... + 133548.

Almost surely, 2^1423232120 is an apocalyptic number.

1423232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423232120 is an abundant number, since it is smaller than the sum of its proper divisors (1802090680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423232120 is a wasteful number, since it uses less digits than its factorization.

1423232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256127 (or 256123 counting only the distinct ones).

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

The square root of 1423232120 is about 37725.7487665918. The cubic root of 1423232120 is about 1124.8430055821.

Adding to 1423232120 its reverse (212323241), we get a palindrome (1635555361).

The spelling of 1423232120 in words is "one billion, four hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty".