121346099543 has 2 divisors, whose sum is σ = 121346099544. Its totient is φ = 121346099542.

The previous prime is 121346099521. The next prime is 121346099551. The reversal of 121346099543 is 345990643121.

It is a strong prime.

It is an emirp because it is prime and its reverse (345990643121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121346099543 - 2¹⁰ = 121346098519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121346090543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60673049771 + 60673049772.

It is an arithmetic number, because the mean of its divisors is an integer number (60673049772).

Almost surely, 2^121346099543 is an apocalyptic number.

121346099543 is a deficient number, since it is larger than the sum of its proper divisors (1).

121346099543 is an equidigital number, since it uses as much as digits as its factorization.

121346099543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 121346099543 in words is "one hundred twenty-one billion, three hundred forty-six million, ninety-nine thousand, five hundred forty-three".