121120121063 has 2 divisors, whose sum is σ = 121120121064. Its totient is φ = 121120121062.

The previous prime is 121120120999. The next prime is 121120121077. The reversal of 121120121063 is 360121021121.

It is a strong prime.

It is an emirp because it is prime and its reverse (360121021121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121120121063 - 2⁶ = 121120120999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121120121263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560060531 + 60560060532.

It is an arithmetic number, because the mean of its divisors is an integer number (60560060532).

Almost surely, 2^121120121063 is an apocalyptic number.

121120121063 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120121063 is an equidigital number, since it uses as much as digits as its factorization.

121120121063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121120121063 its reverse (360121021121), we get a palindrome (481241142184).

The spelling of 121120121063 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, sixty-three".