121505063 has 2 divisors, whose sum is σ = 121505064. Its totient is φ = 121505062.

The previous prime is 121505053. The next prime is 121505093. The reversal of 121505063 is 360505121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121505063 - 2¹⁰ = 121504039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121505023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60752531 + 60752532.

It is an arithmetic number, because the mean of its divisors is an integer number (60752532).

Almost surely, 2^121505063 is an apocalyptic number.

121505063 is a deficient number, since it is larger than the sum of its proper divisors (1).

121505063 is an equidigital number, since it uses as much as digits as its factorization.

121505063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 121505063 is about 11022.9335024756. The cubic root of 121505063 is about 495.2959669331.

The spelling of 121505063 in words is "one hundred twenty-one million, five hundred five thousand, sixty-three".