121447747327 has 2 divisors, whose sum is σ = 121447747328. Its totient is φ = 121447747326.

The previous prime is 121447747279. The next prime is 121447747361. The reversal of 121447747327 is 723747744121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121447747327 - 2²⁷ = 121313529599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121447747027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60723873663 + 60723873664.

It is an arithmetic number, because the mean of its divisors is an integer number (60723873664).

Almost surely, 2^121447747327 is an apocalyptic number.

121447747327 is a deficient number, since it is larger than the sum of its proper divisors (1).

121447747327 is an equidigital number, since it uses as much as digits as its factorization.

121447747327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1843968, while the sum is 49.

The spelling of 121447747327 in words is "one hundred twenty-one billion, four hundred forty-seven million, seven hundred forty-seven thousand, three hundred twenty-seven".