1200421133 has 8 divisors (see below), whose sum is σ = 1207776000. Its totient is φ = 1193079888.

The previous prime is 1200421127. The next prime is 1200421171. The reversal of 1200421133 is 3311240021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200421133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200411133) 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, 214748 + ... + 220266.

It is an arithmetic number, because the mean of its divisors is an integer number (150972000).

Almost surely, 2^1200421133 is an apocalyptic number.

It is an amenable number.

1200421133 is a deficient number, since it is larger than the sum of its proper divisors (7354867).

1200421133 is a wasteful number, since it uses less digits than its factorization.

1200421133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1200421133 is about 34647.0941494377. The cubic root of 1200421133 is about 1062.7828659187.

Adding to 1200421133 its reverse (3311240021), we get a palindrome (4511661154).

The spelling of 1200421133 in words is "one billion, two hundred million, four hundred twenty-one thousand, one hundred thirty-three".