121922313 has 8 divisors (see below), whose sum is σ = 165630528. Its totient is φ = 79747824.

The previous prime is 121922309. The next prime is 121922323. The reversal of 121922313 is 313229121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121922313 - 2² = 121922309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121922303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383245 + ... + 383562.

It is an arithmetic number, because the mean of its divisors is an integer number (20703816).

Almost surely, 2^121922313 is an apocalyptic number.

It is an amenable number.

121922313 is a deficient number, since it is larger than the sum of its proper divisors (43708215).

121922313 is an equidigital number, since it uses as much as digits as its factorization.

121922313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766863.

The product of its digits is 648, while the sum is 24.

The square root of 121922313 is about 11041.8437319136. The cubic root of 121922313 is about 495.8622701721.

It can be divided in two parts, 1219 and 22313, that added together give a palindrome (23532).

The spelling of 121922313 in words is "one hundred twenty-one million, nine hundred twenty-two thousand, three hundred thirteen".