544331544121 has 2 divisors, whose sum is σ = 544331544122. Its totient is φ = 544331544120.

The previous prime is 544331544109. The next prime is 544331544131. The reversal of 544331544121 is 121445133445.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331062144400 + 213269399721 = 575380^2 + 461811^2 .

It is a cyclic number.

It is not a de Polignac number, because 544331544121 - 2¹⁹ = 544331019833 is a prime.

It is not a weakly prime, because it can be changed into another prime (544331544131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272165772060 + 272165772061.

It is an arithmetic number, because the mean of its divisors is an integer number (272165772061).

Almost surely, 2^544331544121 is an apocalyptic number.

It is an amenable number.

544331544121 is a deficient number, since it is larger than the sum of its proper divisors (1).

544331544121 is an equidigital number, since it uses as much as digits as its factorization.

544331544121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 37.

Adding to 544331544121 its reverse (121445133445), we get a palindrome (665776677566).

The spelling of 544331544121 in words is "five hundred forty-four billion, three hundred thirty-one million, five hundred forty-four thousand, one hundred twenty-one".