1232137201 has 2 divisors, whose sum is σ = 1232137202. Its totient is φ = 1232137200.

The previous prime is 1232137187. The next prime is 1232137223. The reversal of 1232137201 is 1027312321.

It is a happy number.

It is an a-pointer prime, because the next prime (1232137223) can be obtained adding 1232137201 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1197090801 + 35046400 = 34599^2 + 5920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232137201 - 2²⁵ = 1198582769 is a prime.

It is a super-2 number, since 2×1232137201² = 3036324164176228802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1232137261) 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 as a sum of consecutive naturals, namely, 616068600 + 616068601.

It is an arithmetic number, because the mean of its divisors is an integer number (616068601).

Almost surely, 2^1232137201 is an apocalyptic number.

It is an amenable number.

1232137201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232137201 is an equidigital number, since it uses as much as digits as its factorization.

1232137201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1232137201 is about 35101.8119332891. The cubic root of 1232137201 is about 1072.0614757502.

Adding to 1232137201 its reverse (1027312321), we get a palindrome (2259449522).

The spelling of 1232137201 in words is "one billion, two hundred thirty-two million, one hundred thirty-seven thousand, two hundred one".