121752335543 has 2 divisors, whose sum is σ = 121752335544. Its totient is φ = 121752335542.

The previous prime is 121752335539. The next prime is 121752335647. The reversal of 121752335543 is 345533257121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121752335543 - 2² = 121752335539 is a prime.

It is a super-2 number, since 2×121752335543² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121752335543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121752335443) 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 as a sum of consecutive naturals, namely, 60876167771 + 60876167772.

It is an arithmetic number, because the mean of its divisors is an integer number (60876167772).

Almost surely, 2^121752335543 is an apocalyptic number.

121752335543 is a deficient number, since it is larger than the sum of its proper divisors (1).

121752335543 is an equidigital number, since it uses as much as digits as its factorization.

121752335543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 41.

The spelling of 121752335543 in words is "one hundred twenty-one billion, seven hundred fifty-two million, three hundred thirty-five thousand, five hundred forty-three".