1200420203 has 8 divisors (see below), whose sum is σ = 1210544016. Its totient is φ = 1190311200.

The previous prime is 1200420187. The next prime is 1200420211. The reversal of 1200420203 is 3020240021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200420203 - 2⁴ = 1200420187 is a prime.

It is a super-2 number, since 2×1200420203² = 2882017327541122418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200420233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209525 + ... + 215177.

It is an arithmetic number, because the mean of its divisors is an integer number (151318002).

Almost surely, 2^1200420203 is an apocalyptic number.

1200420203 is a deficient number, since it is larger than the sum of its proper divisors (10123813).

1200420203 is a wasteful number, since it uses less digits than its factorization.

1200420203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7405.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1200420203 is about 34647.0807283962. The cubic root of 1200420203 is about 1062.7825914627.

Adding to 1200420203 its reverse (3020240021), we get a palindrome (4220660224).

The spelling of 1200420203 in words is "one billion, two hundred million, four hundred twenty thousand, two hundred three".