121885602583 has 2 divisors, whose sum is σ = 121885602584. Its totient is φ = 121885602582.

The previous prime is 121885602581. The next prime is 121885602599. The reversal of 121885602583 is 385206588121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121885602583 - 2¹ = 121885602581 is a prime.

It is a super-2 number, since 2×121885602583² (a number of 23 digits) contains 22 as substring.

Together with 121885602581, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121885602581) 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, 60942801291 + 60942801292.

It is an arithmetic number, because the mean of its divisors is an integer number (60942801292).

Almost surely, 2^121885602583 is an apocalyptic number.

121885602583 is a deficient number, since it is larger than the sum of its proper divisors (1).

121885602583 is an equidigital number, since it uses as much as digits as its factorization.

121885602583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921600, while the sum is 49.

The spelling of 121885602583 in words is "one hundred twenty-one billion, eight hundred eighty-five million, six hundred two thousand, five hundred eighty-three".