1231300201 has 4 divisors (see below), whose sum is σ = 1231393492. Its totient is φ = 1231206912.

The previous prime is 1231300199. The next prime is 1231300211. The reversal of 1231300201 is 1020031321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 737394025 + 493906176 = 27155^2 + 22224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231300201 - 2¹ = 1231300199 is a prime.

It is a super-2 number, since 2×1231300201² = 3032200369965280802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231300211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22776 + ... + 54601.

It is an arithmetic number, because the mean of its divisors is an integer number (307848373).

Almost surely, 2^1231300201 is an apocalyptic number.

It is an amenable number.

1231300201 is a deficient number, since it is larger than the sum of its proper divisors (93291).

1231300201 is an equidigital number, since it uses as much as digits as its factorization.

1231300201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93290.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1231300201 is about 35089.8874463855. The cubic root of 1231300201 is about 1071.8186676399.

Adding to 1231300201 its reverse (1020031321), we get a palindrome (2251331522).

The spelling of 1231300201 in words is "one billion, two hundred thirty-one million, three hundred thousand, two hundred one".