121031541 has 12 divisors (see below), whose sum is σ = 178889568. Its totient is φ = 78810984.

The previous prime is 121031531. The next prime is 121031557. The reversal of 121031541 is 145130121.

121031541 is a `hidden beast` number, since 121 + 0 + 3 + 1 + 541 = 666.

It is not a de Polignac number, because 121031541 - 2⁵ = 121031509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121031531) 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, 155985 + ... + 156758.

It is an arithmetic number, because the mean of its divisors is an integer number (14907464).

Almost surely, 2^121031541 is an apocalyptic number.

It is an amenable number.

121031541 is a deficient number, since it is larger than the sum of its proper divisors (57858027).

121031541 is a wasteful number, since it uses less digits than its factorization.

121031541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312792 (or 312789 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 121031541 is about 11001.4335884011. The cubic root of 121031541 is about 494.6517170496.

Adding to 121031541 its reverse (145130121), we get a palindrome (266161662).

The spelling of 121031541 in words is "one hundred twenty-one million, thirty-one thousand, five hundred forty-one".