121031231201 has 2 divisors, whose sum is σ = 121031231202. Its totient is φ = 121031231200.

The previous prime is 121031231173. The next prime is 121031231207. The reversal of 121031231201 is 102132130121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101863105600 + 19168125601 = 319160^2 + 138449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121031231201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121031231201.

It is not a weakly prime, because it can be changed into another prime (121031231207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515615600 + 60515615601.

It is an arithmetic number, because the mean of its divisors is an integer number (60515615601).

Almost surely, 2^121031231201 is an apocalyptic number.

It is an amenable number.

121031231201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121031231201 is an equidigital number, since it uses as much as digits as its factorization.

121031231201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121031231201 its reverse (102132130121), we get a palindrome (223163361322).

The spelling of 121031231201 in words is "one hundred twenty-one billion, thirty-one million, two hundred thirty-one thousand, two hundred one".