1201199983 has 8 divisors (see below), whose sum is σ = 1221955520. Its totient is φ = 1180478880.

The previous prime is 1201199963. The next prime is 1201200029. The reversal of 1201199983 is 3899911021.

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 1201199983 - 2²¹ = 1199102831 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 (1201199903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67498 + ... + 83416.

It is an arithmetic number, because the mean of its divisors is an integer number (152744440).

Almost surely, 2^1201199983 is an apocalyptic number.

1201199983 is a deficient number, since it is larger than the sum of its proper divisors (20755537).

1201199983 is a wasteful number, since it uses less digits than its factorization.

1201199983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17217.

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 1201199983 is about 34658.3320862387. The cubic root of 1201199983 is about 1063.0126656833.

The spelling of 1201199983 in words is "one billion, two hundred one million, one hundred ninety-nine thousand, nine hundred eighty-three".