1200424423 has 6 divisors (see below), whose sum is σ = 1319474912. Its totient is φ = 1091294820.

The previous prime is 1200424409. The next prime is 1200424457. The reversal of 1200424423 is 3244240021.

It is a happy number.

It is not a de Polignac number, because 1200424423 - 2⁵ = 1200424391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200424394 and 1200424403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200424403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4960311 + ... + 4960552.

Almost surely, 2^1200424423 is an apocalyptic number.

1200424423 is a deficient number, since it is larger than the sum of its proper divisors (119050489).

1200424423 is an equidigital number, since it uses as much as digits as its factorization.

1200424423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9920885 (or 9920874 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1200424423 is about 34647.1416281343. The cubic root of 1200424423 is about 1062.7838368425.

Adding to 1200424423 its reverse (3244240021), we get a palindrome (4444664444).

The spelling of 1200424423 in words is "one billion, two hundred million, four hundred twenty-four thousand, four hundred twenty-three".