541203388021 has 16 divisors (see below), whose sum is σ = 573640120368. Its totient is φ = 508833792000.

The previous prime is 541203388013. The next prime is 541203388049. The reversal of 541203388021 is 120883302145.

It can be written as a sum of positive squares in 8 ways, for example, as 201035656900 + 340167731121 = 448370^2 + 583239^2 .

It is a cyclic number.

It is not a de Polignac number, because 541203388021 - 2³ = 541203388013 is a prime.

It is a super-2 number, since 2×541203388021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541203380021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112724821 + ... + 112729621.

It is an arithmetic number, because the mean of its divisors is an integer number (35852507523).

Almost surely, 2^541203388021 is an apocalyptic number.

It is an amenable number.

541203388021 is a deficient number, since it is larger than the sum of its proper divisors (32436732347).

541203388021 is a wasteful number, since it uses less digits than its factorization.

541203388021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 541203388021 in words is "five hundred forty-one billion, two hundred three million, three hundred eighty-eight thousand, twenty-one".