1200430001 has 4 divisors (see below), whose sum is σ = 1204859904. Its totient is φ = 1196000100.

The previous prime is 1200429983. The next prime is 1200430009. The reversal of 1200430001 is 1000340021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200430001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200430009) 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, 2214545 + ... + 2215086.

It is an arithmetic number, because the mean of its divisors is an integer number (301214976).

Almost surely, 2^1200430001 is an apocalyptic number.

It is an amenable number.

1200430001 is a deficient number, since it is larger than the sum of its proper divisors (4429903).

1200430001 is an equidigital number, since it uses as much as digits as its factorization.

1200430001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429902.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1200430001 is about 34647.2221253018. Note that the first 3 decimals coincide. The cubic root of 1200430001 is about 1062.7854829822.

Adding to 1200430001 its reverse (1000340021), we get a palindrome (2200770022).

The spelling of 1200430001 in words is "one billion, two hundred million, four hundred thirty thousand, one".