121351115 has 4 divisors (see below), whose sum is σ = 145621344. Its totient is φ = 97080888.

The previous prime is 121351099. The next prime is 121351121. The reversal of 121351115 is 511153121.

It is a happy number.

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 121351115 - 2⁴ = 121351099 is a prime.

It is a super-2 number, since 2×121351115² = 29452186223486450, which contains 22 as substring.

It is a Duffinian number.

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, 12135107 + ... + 12135116.

It is an arithmetic number, because the mean of its divisors is an integer number (36405336).

Almost surely, 2^121351115 is an apocalyptic number.

121351115 is a deficient number, since it is larger than the sum of its proper divisors (24270229).

121351115 is an equidigital number, since it uses as much as digits as its factorization.

121351115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24270228.

The product of its digits is 150, while the sum is 20.

The square root of 121351115 is about 11015.9482115704. The cubic root of 121351115 is about 495.0866970548.

The spelling of 121351115 in words is "one hundred twenty-one million, three hundred fifty-one thousand, one hundred fifteen".