121415521303 has 2 divisors, whose sum is σ = 121415521304. Its totient is φ = 121415521302.

The previous prime is 121415521273. The next prime is 121415521391. The reversal of 121415521303 is 303125514121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121415521303 - 2³³ = 112825586711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121415522303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60707760651 + 60707760652.

It is an arithmetic number, because the mean of its divisors is an integer number (60707760652).

Almost surely, 2^121415521303 is an apocalyptic number.

121415521303 is a deficient number, since it is larger than the sum of its proper divisors (1).

121415521303 is an equidigital number, since it uses as much as digits as its factorization.

121415521303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 121415521303 in words is "one hundred twenty-one billion, four hundred fifteen million, five hundred twenty-one thousand, three hundred three".