121532035504257 has 48 divisors (see below), whose sum is σ = 201027546919680. Its totient is φ = 69307436491776.

The previous prime is 121532035504247. The next prime is 121532035504259. The reversal of 121532035504257 is 752405530235121.

121532035504257 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 3 + 2 + 0 + 3 + 550 + 42 + 57 = 666.

It is not a de Polignac number, because 121532035504257 - 2¹⁵ = 121532035471489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121532035504259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61513893 + ... + 63458829.

It is an arithmetic number, because the mean of its divisors is an integer number (4188073894160).

Almost surely, 2^{121532035504257} is an apocalyptic number.

It is an amenable number.

121532035504257 is a deficient number, since it is larger than the sum of its proper divisors (79495511415423).

121532035504257 is a wasteful number, since it uses less digits than its factorization.

121532035504257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946942 (or 1946939 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

Adding to 121532035504257 its reverse (752405530235121), we get a palindrome (873937565739378).

The spelling of 121532035504257 in words is "one hundred twenty-one trillion, five hundred thirty-two billion, thirty-five million, five hundred four thousand, two hundred fifty-seven".