121521240310041 has 48 divisors (see below), whose sum is σ = 206236228790592. Its totient is φ = 67977855792000.

The previous prime is 121521240310007. The next prime is 121521240310069. The reversal of 121521240310041 is 140013042125121.

121521240310041 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 212 + 403 + 1 + 0 + 0 + 41 = 666.

It is not a de Polignac number, because 121521240310041 - 2²⁶ = 121521173201177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121521240309987 and 121521240310014.

It is not an unprimeable number, because it can be changed into a prime (121521240310081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10270591 + ... + 18668891.

It is an arithmetic number, because the mean of its divisors is an integer number (4296588099804).

Almost surely, 2^{121521240310041} is an apocalyptic number.

121521240310041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121521240310041 is a deficient number, since it is larger than the sum of its proper divisors (84714988480551).

121521240310041 is a wasteful number, since it uses less digits than its factorization.

121521240310041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409574 (or 8409571 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 121521240310041 its reverse (140013042125121), we get a palindrome (261534282435162).

The spelling of 121521240310041 in words is "one hundred twenty-one trillion, five hundred twenty-one billion, two hundred forty million, three hundred ten thousand, forty-one".