121343351 has 4 divisors (see below), whose sum is σ = 121366032. Its totient is φ = 121320672.

The previous prime is 121343323. The next prime is 121343389. The reversal of 121343351 is 153343121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153343121 = 443 ⋅346147.

It is a cyclic number.

It is not a de Polignac number, because 121343351 - 2¹⁰ = 121342327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121343311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (30341508).

Almost surely, 2^121343351 is an apocalyptic number.

121343351 is a deficient number, since it is larger than the sum of its proper divisors (22681).

121343351 is an equidigital number, since it uses as much as digits as its factorization.

121343351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22680.

The product of its digits is 1080, while the sum is 23.

The square root of 121343351 is about 11015.5958077627. The cubic root of 121343351 is about 495.0761383409.

Adding to 121343351 its reverse (153343121), we get a palindrome (274686472).

The spelling of 121343351 in words is "one hundred twenty-one million, three hundred forty-three thousand, three hundred fifty-one".