121456313 has 8 divisors (see below), whose sum is σ = 140292000. Its totient is φ = 103919680.

The previous prime is 121456297. The next prime is 121456343. The reversal of 121456313 is 313654121.

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

It is a cyclic number.

It is not a de Polignac number, because 121456313 - 2⁴ = 121456297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121456343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324563 + ... + 324936.

It is an arithmetic number, because the mean of its divisors is an integer number (17536500).

Almost surely, 2^121456313 is an apocalyptic number.

It is an amenable number.

121456313 is a deficient number, since it is larger than the sum of its proper divisors (18835687).

121456313 is a wasteful number, since it uses less digits than its factorization.

121456313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649527.

The product of its digits is 2160, while the sum is 26.

The square root of 121456313 is about 11020.7219817941. The cubic root of 121456313 is about 495.2297175447.

The spelling of 121456313 in words is "one hundred twenty-one million, four hundred fifty-six thousand, three hundred thirteen".