540021534131122 has 8 divisors (see below), whose sum is σ = 837964449513900. Its totient is φ = 260700050959824.

The previous prime is 540021534131117. The next prime is 540021534131129. The reversal of 540021534131122 is 221131435120045.

It can be written as a sum of positive squares in 2 ways, for example, as 536787223231561 + 3234310899561 = 23168669^2 + 1798419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (540021534131129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4655358052797 + ... + 4655358052912.

Almost surely, 2^{540021534131122} is an apocalyptic number.

540021534131122 is a deficient number, since it is larger than the sum of its proper divisors (297942915382778).

540021534131122 is a wasteful number, since it uses less digits than its factorization.

540021534131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9310716105740.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 540021534131122 its reverse (221131435120045), we get a palindrome (761152969251167).

The spelling of 540021534131122 in words is "five hundred forty trillion, twenty-one billion, five hundred thirty-four million, one hundred thirty-one thousand, one hundred twenty-two".