121511041 has 4 divisors (see below), whose sum is σ = 125430784. Its totient is φ = 117591300.

The previous prime is 121511029. The next prime is 121511051. The reversal of 121511041 is 140115121.

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 121511041 - 2⁵ = 121511009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121511051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959825 + ... + 1959886.

It is an arithmetic number, because the mean of its divisors is an integer number (31357696).

Almost surely, 2^121511041 is an apocalyptic number.

It is an amenable number.

121511041 is a deficient number, since it is larger than the sum of its proper divisors (3919743).

121511041 is an equidigital number, since it uses as much as digits as its factorization.

121511041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919742.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 121511041 is about 11023.2046610775. The cubic root of 121511041 is about 495.3040895871.

Adding to 121511041 its reverse (140115121), we get a palindrome (261626162).

The spelling of 121511041 in words is "one hundred twenty-one million, five hundred eleven thousand, forty-one".