121253317 has 4 divisors (see below), whose sum is σ = 123063136. Its totient is φ = 119443500.

The previous prime is 121253291. The next prime is 121253323. The reversal of 121253317 is 713352121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121253317 - 2²³ = 112864709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121253291 and 121253300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121253417) 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, 904809 + ... + 904942.

It is an arithmetic number, because the mean of its divisors is an integer number (30765784).

Almost surely, 2^121253317 is an apocalyptic number.

It is an amenable number.

121253317 is a deficient number, since it is larger than the sum of its proper divisors (1809819).

121253317 is an equidigital number, since it uses as much as digits as its factorization.

121253317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809818.

The product of its digits is 1260, while the sum is 25.

The square root of 121253317 is about 11011.5083889538. The cubic root of 121253317 is about 494.9536629754.

The spelling of 121253317 in words is "one hundred twenty-one million, two hundred fifty-three thousand, three hundred seventeen".