121307141 has 4 divisors (see below), whose sum is σ = 123888192. Its totient is φ = 118726092.

The previous prime is 121307119. The next prime is 121307143. The reversal of 121307141 is 141703121.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 121307141 - 2²² = 117112837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121307143) 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, 1290455 + ... + 1290548.

It is an arithmetic number, because the mean of its divisors is an integer number (30972048).

Almost surely, 2^121307141 is an apocalyptic number.

It is an amenable number.

121307141 is a deficient number, since it is larger than the sum of its proper divisors (2581051).

121307141 is an equidigital number, since it uses as much as digits as its factorization.

121307141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581050.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 121307141 is about 11013.9521063059. The cubic root of 121307141 is about 495.0268883126.

The spelling of 121307141 in words is "one hundred twenty-one million, three hundred seven thousand, one hundred forty-one".