121636910683 has 2 divisors, whose sum is σ = 121636910684. Its totient is φ = 121636910682.

The previous prime is 121636910671. The next prime is 121636910713. The reversal of 121636910683 is 386019636121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121636910683 - 2⁵ = 121636910651 is a prime.

It is not a weakly prime, because it can be changed into another prime (121636910623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60818455341 + 60818455342.

It is an arithmetic number, because the mean of its divisors is an integer number (60818455342).

Almost surely, 2^121636910683 is an apocalyptic number.

121636910683 is a deficient number, since it is larger than the sum of its proper divisors (1).

121636910683 is an equidigital number, since it uses as much as digits as its factorization.

121636910683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 121636910683 in words is "one hundred twenty-one billion, six hundred thirty-six million, nine hundred ten thousand, six hundred eighty-three".