121403241 has 12 divisors (see below), whose sum is σ = 175770868. Its totient is φ = 80745984.

The previous prime is 121403221. The next prime is 121403267. The reversal of 121403241 is 142304121.

121403241 is a `hidden beast` number, since 1 + 21 + 403 + 241 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21483225 + 99920016 = 4635^2 + 9996^2 .

It is not a de Polignac number, because 121403241 - 2¹⁴ = 121386857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121403201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11680 + ... + 19473.

Almost surely, 2^121403241 is an apocalyptic number.

It is an amenable number.

121403241 is a deficient number, since it is larger than the sum of its proper divisors (54367627).

121403241 is a wasteful number, since it uses less digits than its factorization.

121403241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31592 (or 31589 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121403241 is about 11018.3138909726. The cubic root of 121403241 is about 495.1575745657.

Adding to 121403241 its reverse (142304121), we get a palindrome (263707362).

The spelling of 121403241 in words is "one hundred twenty-one million, four hundred three thousand, two hundred forty-one".