121323115 has 4 divisors (see below), whose sum is σ = 145587744. Its totient is φ = 97058488.

The previous prime is 121323107. The next prime is 121323143. The reversal of 121323115 is 511323121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121323115 - 2³ = 121323107 is a prime.

It is a super-3 number, since 3×121323115³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121323092 and 121323101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12132307 + ... + 12132316.

It is an arithmetic number, because the mean of its divisors is an integer number (36396936).

Almost surely, 2^121323115 is an apocalyptic number.

121323115 is a deficient number, since it is larger than the sum of its proper divisors (24264629).

121323115 is an equidigital number, since it uses as much as digits as its factorization.

121323115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24264628.

The product of its digits is 180, while the sum is 19.

The square root of 121323115 is about 11014.6772535558. The cubic root of 121323115 is about 495.0486161141.

Adding to 121323115 its reverse (511323121), we get a palindrome (632646236).

The spelling of 121323115 in words is "one hundred twenty-one million, three hundred twenty-three thousand, one hundred fifteen".