1200131201 has 4 divisors (see below), whose sum is σ = 1270727172. Its totient is φ = 1129535232.

The previous prime is 1200131197. The next prime is 1200131209. The reversal of 1200131201 is 1021310021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 947162176 + 252969025 = 30776^2 + 15905^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200131201 - 2² = 1200131197 is a prime.

It is a super-2 number, since 2×1200131201² = 2880629799227404802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200131209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35297960 + ... + 35297993.

It is an arithmetic number, because the mean of its divisors is an integer number (317681793).

Almost surely, 2^1200131201 is an apocalyptic number.

It is an amenable number.

1200131201 is a deficient number, since it is larger than the sum of its proper divisors (70595971).

1200131201 is an equidigital number, since it uses as much as digits as its factorization.

1200131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70595970.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1200131201 is about 34642.9098229349. The cubic root of 1200131201 is about 1062.6972960676.

Adding to 1200131201 its reverse (1021310021), we get a palindrome (2221441222).

The spelling of 1200131201 in words is "one billion, two hundred million, one hundred thirty-one thousand, two hundred one".