121330141 has 4 divisors (see below), whose sum is σ = 124609372. Its totient is φ = 118050912.

The previous prime is 121330123. The next prime is 121330151. The reversal of 121330141 is 141033121.

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 70207641 + 51122500 = 8379^2 + 7150^2 .

It is a cyclic number.

It is not a de Polignac number, because 121330141 - 2⁵ = 121330109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121330151) 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, 1639560 + ... + 1639633.

It is an arithmetic number, because the mean of its divisors is an integer number (31152343).

Almost surely, 2^121330141 is an apocalyptic number.

It is an amenable number.

121330141 is a deficient number, since it is larger than the sum of its proper divisors (3279231).

121330141 is an equidigital number, since it uses as much as digits as its factorization.

121330141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279230.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 121330141 is about 11014.9961870170. The cubic root of 121330141 is about 495.0581722607.

Adding to 121330141 its reverse (141033121), we get a palindrome (262363262).

The spelling of 121330141 in words is "one hundred twenty-one million, three hundred thirty thousand, one hundred forty-one".