121270394279 has 2 divisors, whose sum is σ = 121270394280. Its totient is φ = 121270394278.

The previous prime is 121270394269. The next prime is 121270394281. The reversal of 121270394279 is 972493072121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121270394279 - 2³² = 116975426983 is a prime.

Together with 121270394281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121270394209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60635197139 + 60635197140.

It is an arithmetic number, because the mean of its divisors is an integer number (60635197140).

Almost surely, 2^121270394279 is an apocalyptic number.

121270394279 is a deficient number, since it is larger than the sum of its proper divisors (1).

121270394279 is an equidigital number, since it uses as much as digits as its factorization.

121270394279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 121270394279 in words is "one hundred twenty-one billion, two hundred seventy million, three hundred ninety-four thousand, two hundred seventy-nine".