121949323 has 2 divisors, whose sum is σ = 121949324. Its totient is φ = 121949322.

The previous prime is 121949281. The next prime is 121949369. The reversal of 121949323 is 323949121.

It is a weak prime.

It is an emirp because it is prime and its reverse (323949121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121949323 is a prime.

It is not a weakly prime, because it can be changed into another prime (121949383) 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, 60974661 + 60974662.

It is an arithmetic number, because the mean of its divisors is an integer number (60974662).

Almost surely, 2^121949323 is an apocalyptic number.

121949323 is a deficient number, since it is larger than the sum of its proper divisors (1).

121949323 is an equidigital number, since it uses as much as digits as its factorization.

121949323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 121949323 is about 11043.0667389091. The cubic root of 121949323 is about 495.8988843370.

The spelling of 121949323 in words is "one hundred twenty-one million, nine hundred forty-nine thousand, three hundred twenty-three".