544420013231 has 4 divisors (see below), whose sum is σ = 544786134432. Its totient is φ = 544053892032.

The previous prime is 544420013219. The next prime is 544420013251. The reversal of 544420013231 is 132310024445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132310024445 = 5 ⋅26462004889.

It is a cyclic number.

It is not a de Polignac number, because 544420013231 - 2¹⁴ = 544419996847 is a prime.

It is a super-2 number, since 2×544420013231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 544420013194 and 544420013203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544420013251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183058370 + ... + 183061343.

It is an arithmetic number, because the mean of its divisors is an integer number (136196533608).

Almost surely, 2^544420013231 is an apocalyptic number.

544420013231 is a deficient number, since it is larger than the sum of its proper divisors (366121201).

544420013231 is a wasteful number, since it uses less digits than its factorization.

544420013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366121200.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 544420013231 its reverse (132310024445), we get a palindrome (676730037676).

The spelling of 544420013231 in words is "five hundred forty-four billion, four hundred twenty million, thirteen thousand, two hundred thirty-one".