121340414105 has 4 divisors (see below), whose sum is σ = 145608496932. Its totient is φ = 97072331280.

The previous prime is 121340414099. The next prime is 121340414113. The reversal of 121340414105 is 501414043121.

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 35571091609 + 85769322496 = 188603^2 + 292864^2 .

It is not a de Polignac number, because 121340414105 - 2¹⁰ = 121340413081 is a prime.

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, 12134041406 + ... + 12134041415.

It is an arithmetic number, because the mean of its divisors is an integer number (36402124233).

Almost surely, 2^121340414105 is an apocalyptic number.

It is an amenable number.

121340414105 is a deficient number, since it is larger than the sum of its proper divisors (24268082827).

121340414105 is an equidigital number, since it uses as much as digits as its factorization.

121340414105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24268082826.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 121340414105 its reverse (501414043121), we get a palindrome (622754457226).

The spelling of 121340414105 in words is "one hundred twenty-one billion, three hundred forty million, four hundred fourteen thousand, one hundred five".