121307 has 8 divisors (see below), whose sum is σ = 129600. Its totient is φ = 113344.

The previous prime is 121291. The next prime is 121309. The reversal of 121307 is 703121.

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 121307 - 2⁴ = 121291 is a prime.

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 = 121291 and 121300.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121307.

It is not an unprimeable number, because it can be changed into a prime (121309) 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, 1319 + ... + 1407.

It is an arithmetic number, because the mean of its divisors is an integer number (16200).

2¹²¹³⁰⁷ is an apocalyptic number.

121307 is a deficient number, since it is larger than the sum of its proper divisors (8293).

121307 is an equidigital number, since it uses as much as digits as its factorization.

121307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 121307 is about 348.2915445428. The cubic root of 121307 is about 49.5026696516.

Adding to 121307 its reverse (703121), we get a palindrome (824428).

The spelling of 121307 in words is "one hundred twenty-one thousand, three hundred seven", and thus it is an iban number.