1232127101 has 2 divisors, whose sum is σ = 1232127102. Its totient is φ = 1232127100.

The previous prime is 1232127079. The next prime is 1232127103. The reversal of 1232127101 is 1017212321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992187001 + 239940100 = 31499^2 + 15490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232127101 is a prime.

It is a Sophie Germain prime.

Together with 1232127103, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232127103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616063550 + 616063551.

It is an arithmetic number, because the mean of its divisors is an integer number (616063551).

Almost surely, 2^1232127101 is an apocalyptic number.

It is an amenable number.

1232127101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232127101 is an equidigital number, since it uses as much as digits as its factorization.

1232127101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1232127101 is about 35101.6680657772. The cubic root of 1232127101 is about 1072.0585464632.

Adding to 1232127101 its reverse (1017212321), we get a palindrome (2249339422).

The spelling of 1232127101 in words is "one billion, two hundred thirty-two million, one hundred twenty-seven thousand, one hundred one".