121323446501 has 2 divisors, whose sum is σ = 121323446502. Its totient is φ = 121323446500.

The previous prime is 121323446477. The next prime is 121323446561. The reversal of 121323446501 is 105644323121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87882009601 + 33441436900 = 296449^2 + 182870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121323446501 is a prime.

It is a Sophie Germain 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 (121323446561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661723250 + 60661723251.

It is an arithmetic number, because the mean of its divisors is an integer number (60661723251).

Almost surely, 2^121323446501 is an apocalyptic number.

It is an amenable number.

121323446501 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323446501 is an equidigital number, since it uses as much as digits as its factorization.

121323446501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 121323446501 its reverse (105644323121), we get a palindrome (226967769622).

The spelling of 121323446501 in words is "one hundred twenty-one billion, three hundred twenty-three million, four hundred forty-six thousand, five hundred one".