121319 has 8 divisors (see below), whose sum is σ = 136080. Its totient is φ = 107200.

The previous prime is 121313. The next prime is 121321. The reversal of 121319 is 913121.

It is a happy number.

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 121319 - 2⁸ = 121063 is a prime.

It is a super-2 number, since 2×121319² = 29436599522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 121297 and 121306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313) 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, 317 + ... + 585.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2¹²¹³¹⁹ is an apocalyptic number.

121319 is a deficient number, since it is larger than the sum of its proper divisors (14761).

121319 is a wasteful number, since it uses less digits than its factorization.

121319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its digits is 54, while the sum is 17.

The square root of 121319 is about 348.3087710638. The cubic root of 121319 is about 49.5043019082.

It can be divided in two parts, 12 and 1319, that added together give a palindrome (1331).

The spelling of 121319 in words is "one hundred twenty-one thousand, three hundred nineteen".