121534245011 has 2 divisors, whose sum is σ = 121534245012. Its totient is φ = 121534245010.

The previous prime is 121534244989. The next prime is 121534245031. The reversal of 121534245011 is 110542435121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (110542435121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121534245011 - 2³⁰ = 120460503187 is a prime.

It is not a weakly prime, because it can be changed into another prime (121534245031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60767122505 + 60767122506.

It is an arithmetic number, because the mean of its divisors is an integer number (60767122506).

Almost surely, 2^121534245011 is an apocalyptic number.

121534245011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121534245011 is an equidigital number, since it uses as much as digits as its factorization.

121534245011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 121534245011 in words is "one hundred twenty-one billion, five hundred thirty-four million, two hundred forty-five thousand, eleven".