121964371 has 2 divisors, whose sum is σ = 121964372. Its totient is φ = 121964370.

The previous prime is 121964369. The next prime is 121964393. The reversal of 121964371 is 173469121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121964371 - 2¹ = 121964369 is a prime.

Together with 121964369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121964471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60982185 + 60982186.

It is an arithmetic number, because the mean of its divisors is an integer number (60982186).

Almost surely, 2^121964371 is an apocalyptic number.

121964371 is a deficient number, since it is larger than the sum of its proper divisors (1).

121964371 is an equidigital number, since it uses as much as digits as its factorization.

121964371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 121964371 is about 11043.7480503677. The cubic root of 121964371 is about 495.9192807315.

The spelling of 121964371 in words is "one hundred twenty-one million, nine hundred sixty-four thousand, three hundred seventy-one".