121241332503 has 12 divisors (see below), whose sum is σ = 175134850488. Its totient is φ = 80823640560.

The previous prime is 121241332439. The next prime is 121241332517. The reversal of 121241332503 is 305233142121.

121241332503 is a `hidden beast` number, since 1 + 2 + 1 + 24 + 133 + 2 + 503 = 666.

It is not a de Polignac number, because 121241332503 - 2⁶ = 121241332439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121241332403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123408 + ... + 507653.

It is an arithmetic number, because the mean of its divisors is an integer number (14594570874).

Almost surely, 2^121241332503 is an apocalyptic number.

121241332503 is a deficient number, since it is larger than the sum of its proper divisors (53893517985).

121241332503 is a wasteful number, since it uses less digits than its factorization.

121241332503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652414 (or 652411 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 121241332503 its reverse (305233142121), we get a palindrome (426474474624).

The spelling of 121241332503 in words is "one hundred twenty-one billion, two hundred forty-one million, three hundred thirty-two thousand, five hundred three".