121346948189 has 2 divisors, whose sum is σ = 121346948190. Its totient is φ = 121346948188.

The previous prime is 121346948147. The next prime is 121346948257. The reversal of 121346948189 is 981849643121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82205491225 + 39141456964 = 286715^2 + 197842^2 .

It is a cyclic number.

It is not a de Polignac number, because 121346948189 - 2²⁰ = 121345899613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121346944189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60673474094 + 60673474095.

It is an arithmetic number, because the mean of its divisors is an integer number (60673474095).

Almost surely, 2^121346948189 is an apocalyptic number.

It is an amenable number.

121346948189 is a deficient number, since it is larger than the sum of its proper divisors (1).

121346948189 is an equidigital number, since it uses as much as digits as its factorization.

121346948189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2985984, while the sum is 56.

The spelling of 121346948189 in words is "one hundred twenty-one billion, three hundred forty-six million, nine hundred forty-eight thousand, one hundred eighty-nine".