121322351 has 4 divisors (see below), whose sum is σ = 123311304. Its totient is φ = 119333400.

The previous prime is 121322347. The next prime is 121322363. The reversal of 121322351 is 153223121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121322351 - 2² = 121322347 is a prime.

It is a super-2 number, since 2×121322351² = 29438225704334402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994385 + ... + 994506.

It is an arithmetic number, because the mean of its divisors is an integer number (30827826).

Almost surely, 2^121322351 is an apocalyptic number.

121322351 is a deficient number, since it is larger than the sum of its proper divisors (1988953).

121322351 is an equidigital number, since it uses as much as digits as its factorization.

121322351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988952.

The product of its digits is 360, while the sum is 20.

The square root of 121322351 is about 11014.6425725032. The cubic root of 121322351 is about 495.0475769663.

Adding to 121322351 its reverse (153223121), we get a palindrome (274545472).

The spelling of 121322351 in words is "one hundred twenty-one million, three hundred twenty-two thousand, three hundred fifty-one".