1201131201 has 8 divisors (see below), whose sum is σ = 1635583104. Its totient is φ = 783716720.

The previous prime is 1201131187. The next prime is 1201131223. The reversal of 1201131201 is 1021311021.

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 1201131201 - 2⁶ = 1201131137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201131241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4259190 + ... + 4259471.

It is an arithmetic number, because the mean of its divisors is an integer number (204447888).

Almost surely, 2^1201131201 is an apocalyptic number.

It is an amenable number.

1201131201 is a deficient number, since it is larger than the sum of its proper divisors (434451903).

1201131201 is an equidigital number, since it uses as much as digits as its factorization.

1201131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518711.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1201131201 is about 34657.3397853903. The cubic root of 1201131201 is about 1062.9923755474.

Adding to 1201131201 its reverse (1021311021), we get a palindrome (2222442222).

The spelling of 1201131201 in words is "one billion, two hundred one million, one hundred thirty-one thousand, two hundred one".