540101221023 has 64 divisors (see below), whose sum is σ = 921591078912. Its totient is φ = 273685616640.

The previous prime is 540101221019. The next prime is 540101221031. The reversal of 540101221023 is 320122101045.

It is not a de Polignac number, because 540101221023 - 2² = 540101221019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540101221013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 926515 + ... + 1392347.

It is an arithmetic number, because the mean of its divisors is an integer number (14399860608).

Almost surely, 2^540101221023 is an apocalyptic number.

540101221023 is a deficient number, since it is larger than the sum of its proper divisors (381489857889).

540101221023 is a wasteful number, since it uses less digits than its factorization.

540101221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466024.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 540101221023 its reverse (320122101045), we get a palindrome (860223322068).

The spelling of 540101221023 in words is "five hundred forty billion, one hundred one million, two hundred twenty-one thousand, twenty-three".