121923296347 has 2 divisors, whose sum is σ = 121923296348. Its totient is φ = 121923296346.

The previous prime is 121923296111. The next prime is 121923296351. The reversal of 121923296347 is 743692329121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121923296347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121923296347.

It is not a weakly prime, because it can be changed into another prime (121923293347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60961648173 + 60961648174.

It is an arithmetic number, because the mean of its divisors is an integer number (60961648174).

Almost surely, 2^121923296347 is an apocalyptic number.

121923296347 is a deficient number, since it is larger than the sum of its proper divisors (1).

121923296347 is an equidigital number, since it uses as much as digits as its factorization.

121923296347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The spelling of 121923296347 in words is "one hundred twenty-one billion, nine hundred twenty-three million, two hundred ninety-six thousand, three hundred forty-seven".