544542403121231 has 2 divisors, whose sum is σ = 544542403121232. Its totient is φ = 544542403121230.

The previous prime is 544542403121179. The next prime is 544542403121267. The reversal of 544542403121231 is 132121304245445.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544542403121231 is a prime.

It is a super-2 number, since 2×544542403121231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544542403121291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272271201560615 + 272271201560616.

It is an arithmetic number, because the mean of its divisors is an integer number (272271201560616).

Almost surely, 2^{544542403121231} is an apocalyptic number.

544542403121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

544542403121231 is an equidigital number, since it uses as much as digits as its factorization.

544542403121231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 544542403121231 its reverse (132121304245445), we get a palindrome (676663707366676).

The spelling of 544542403121231 in words is "five hundred forty-four trillion, five hundred forty-two billion, four hundred three million, one hundred twenty-one thousand, two hundred thirty-one".