121415054788913 has 2 divisors, whose sum is σ = 121415054788914. Its totient is φ = 121415054788912.

The previous prime is 121415054788901. The next prime is 121415054788931. The reversal of 121415054788913 is 319887450514121.

Together with next prime (121415054788931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114434003048689 + 6981051740224 = 10697383^2 + 2642168^2 .

It is a cyclic number.

It is not a de Polignac number, because 121415054788913 - 2³⁰ = 121413981047089 is a prime.

It is a super-2 number, since 2×121415054788913² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121415054788943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60707527394456 + 60707527394457.

It is an arithmetic number, because the mean of its divisors is an integer number (60707527394457).

Almost surely, 2^{121415054788913} is an apocalyptic number.

It is an amenable number.

121415054788913 is a deficient number, since it is larger than the sum of its proper divisors (1).

121415054788913 is an equidigital number, since it uses as much as digits as its factorization.

121415054788913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 59.

The spelling of 121415054788913 in words is "one hundred twenty-one trillion, four hundred fifteen billion, fifty-four million, seven hundred eighty-eight thousand, nine hundred thirteen".