121010101019963 has 2 divisors, whose sum is σ = 121010101019964. Its totient is φ = 121010101019962.

The previous prime is 121010101019953. The next prime is 121010101019981. The reversal of 121010101019963 is 369910101010121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121010101019963 - 2⁴ = 121010101019947 is a prime.

It is not a weakly prime, because it can be changed into another prime (121010101019953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505050509981 + 60505050509982.

It is an arithmetic number, because the mean of its divisors is an integer number (60505050509982).

Almost surely, 2^{121010101019963} is an apocalyptic number.

121010101019963 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010101019963 is an equidigital number, since it uses as much as digits as its factorization.

121010101019963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 121010101019963 in words is "one hundred twenty-one trillion, ten billion, one hundred one million, nineteen thousand, nine hundred sixty-three".