121752404543 has 32 divisors (see below), whose sum is σ = 154440000000. Its totient is φ = 93220513920.

The previous prime is 121752404519. The next prime is 121752404651. The reversal of 121752404543 is 345404257121.

It is a cyclic number.

It is not a de Polignac number, because 121752404543 - 2¹⁴ = 121752388159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121752404497 and 121752404506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752404503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12483833 + ... + 12493581.

It is an arithmetic number, because the mean of its divisors is an integer number (4826250000).

Almost surely, 2^121752404543 is an apocalyptic number.

121752404543 is a deficient number, since it is larger than the sum of its proper divisors (32687595457).

121752404543 is a wasteful number, since it uses less digits than its factorization.

121752404543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12575.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 121752404543 in words is "one hundred twenty-one billion, seven hundred fifty-two million, four hundred four thousand, five hundred forty-three".