540121505004123 has 24 divisors (see below), whose sum is σ = 858172147333200. Its totient is φ = 301113034145280.

The previous prime is 540121505004091. The next prime is 540121505004173. The reversal of 540121505004123 is 321400505121045.

It is not a de Polignac number, because 540121505004123 - 2⁵ = 540121505004091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540121505004173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44808481198 + ... + 44808493251.

It is an arithmetic number, because the mean of its divisors is an integer number (35757172805550).

Almost surely, 2^{540121505004123} is an apocalyptic number.

540121505004123 is a deficient number, since it is larger than the sum of its proper divisors (318050642329077).

540121505004123 is a wasteful number, since it uses less digits than its factorization.

540121505004123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89616974507 (or 89616974500 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 540121505004123 in words is "five hundred forty trillion, one hundred twenty-one billion, five hundred five million, four thousand, one hundred twenty-three".