121246744319 has 2 divisors, whose sum is σ = 121246744320. Its totient is φ = 121246744318.

The previous prime is 121246744277. The next prime is 121246744321. The reversal of 121246744319 is 913447642121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121246744319 - 2²⁰ = 121245695743 is a prime.

It is a super-2 number, since 2×121246744319² (a number of 23 digits) contains 22 as substring.

Together with 121246744321, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121246744319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121246744379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60623372159 + 60623372160.

It is an arithmetic number, because the mean of its divisors is an integer number (60623372160).

Almost surely, 2^121246744319 is an apocalyptic number.

121246744319 is a deficient number, since it is larger than the sum of its proper divisors (1).

121246744319 is an equidigital number, since it uses as much as digits as its factorization.

121246744319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The spelling of 121246744319 in words is "one hundred twenty-one billion, two hundred forty-six million, seven hundred forty-four thousand, three hundred nineteen".