121203241 has 4 divisors (see below), whose sum is σ = 121225300. Its totient is φ = 121181184.

The previous prime is 121203193. The next prime is 121203347. The reversal of 121203241 is 142302121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 69305625 + 51897616 = 8325^2 + 7204^2 .

It is a cyclic number.

It is not a de Polignac number, because 121203241 - 2⁷ = 121203113 is a prime.

It is a super-3 number, since 3×121203241³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (121203041) 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, 4525 + ... + 16213.

It is an arithmetic number, because the mean of its divisors is an integer number (30306325).

Almost surely, 2^121203241 is an apocalyptic number.

It is an amenable number.

121203241 is a deficient number, since it is larger than the sum of its proper divisors (22059).

121203241 is a wasteful number, since it uses less digits than its factorization.

121203241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22058.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121203241 is about 11009.2343512163. The cubic root of 121203241 is about 494.8855171766.

Adding to 121203241 its reverse (142302121), we get a palindrome (263505362).

The spelling of 121203241 in words is "one hundred twenty-one million, two hundred three thousand, two hundred forty-one".