121360105 has 4 divisors (see below), whose sum is σ = 145632132. Its totient is φ = 97088080.

The previous prime is 121360097. The next prime is 121360159. The reversal of 121360105 is 501063121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48274704 + 73085401 = 6948^2 + 8549^2 .

It is not a de Polignac number, because 121360105 - 2³ = 121360097 is a prime.

It is a super-2 number, since 2×121360105² = 29456550171222050, 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, 12136006 + ... + 12136015.

It is an arithmetic number, because the mean of its divisors is an integer number (36408033).

Almost surely, 2^121360105 is an apocalyptic number.

It is an amenable number.

121360105 is a deficient number, since it is larger than the sum of its proper divisors (24272027).

121360105 is an equidigital number, since it uses as much as digits as its factorization.

121360105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24272026.

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

The square root of 121360105 is about 11016.3562487784. The cubic root of 121360105 is about 495.0989225145.

The spelling of 121360105 in words is "one hundred twenty-one million, three hundred sixty thousand, one hundred five".