1301131201 has 4 divisors (see below), whose sum is σ = 1301883732. Its totient is φ = 1300378672.

The previous prime is 1301131199. The next prime is 1301131231. The reversal of 1301131201 is 1021311031.

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 1050732225 + 250398976 = 32415^2 + 15824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301131201 - 2¹ = 1301131199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301131231) 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 3 ways as a sum of consecutive naturals, for example, 373666 + ... + 377131.

It is an arithmetic number, because the mean of its divisors is an integer number (325470933).

Almost surely, 2^1301131201 is an apocalyptic number.

It is an amenable number.

1301131201 is a deficient number, since it is larger than the sum of its proper divisors (752531).

1301131201 is an equidigital number, since it uses as much as digits as its factorization.

1301131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752530.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1301131201 is about 36071.1962790257. The cubic root of 1301131201 is about 1091.7093514715.

Adding to 1301131201 its reverse (1021311031), we get a palindrome (2322442232).

The spelling of 1301131201 in words is "one billion, three hundred one million, one hundred thirty-one thousand, two hundred one".