121707405241 has 4 divisors (see below), whose sum is σ = 121708194192. Its totient is φ = 121706616292.

The previous prime is 121707405221. The next prime is 121707405251. The reversal of 121707405241 is 142504707121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 121707405241 - 2¹¹ = 121707403193 is a prime.

It is a super-3 number, since 3×121707405241³ (a number of 34 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 = 121707405197 and 121707405206.

It is not an unprimeable number, because it can be changed into a prime (121707405221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78955 + ... + 499648.

It is an arithmetic number, because the mean of its divisors is an integer number (30427048548).

Almost surely, 2^121707405241 is an apocalyptic number.

It is an amenable number.

121707405241 is a deficient number, since it is larger than the sum of its proper divisors (788951).

121707405241 is an equidigital number, since it uses as much as digits as its factorization.

121707405241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788950.

The product of its (nonzero) digits is 15680, while the sum is 34.

The spelling of 121707405241 in words is "one hundred twenty-one billion, seven hundred seven million, four hundred five thousand, two hundred forty-one".