121510242463663 has 2 divisors, whose sum is σ = 121510242463664. Its totient is φ = 121510242463662.

The previous prime is 121510242463627. The next prime is 121510242463691. The reversal of 121510242463663 is 366364242015121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121510242463663 - 2²⁵ = 121510208909231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121510242463063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60755121231831 + 60755121231832.

It is an arithmetic number, because the mean of its divisors is an integer number (60755121231832).

Almost surely, 2^{121510242463663} is an apocalyptic number.

121510242463663 is a deficient number, since it is larger than the sum of its proper divisors (1).

121510242463663 is an equidigital number, since it uses as much as digits as its factorization.

121510242463663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 46.

Adding to 121510242463663 its reverse (366364242015121), we get a palindrome (487874484478784).

The spelling of 121510242463663 in words is "one hundred twenty-one trillion, five hundred ten billion, two hundred forty-two million, four hundred sixty-three thousand, six hundred sixty-three".