542033321321 has 2 divisors, whose sum is σ = 542033321322. Its totient is φ = 542033321320.

The previous prime is 542033321287. The next prime is 542033321327. The reversal of 542033321321 is 123123330245.

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., 406487854096 + 135545467225 = 637564^2 + 368165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542033321321 is a prime.

It is not a weakly prime, because it can be changed into another prime (542033321327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271016660660 + 271016660661.

It is an arithmetic number, because the mean of its divisors is an integer number (271016660661).

Almost surely, 2^542033321321 is an apocalyptic number.

It is an amenable number.

542033321321 is a deficient number, since it is larger than the sum of its proper divisors (1).

542033321321 is an equidigital number, since it uses as much as digits as its factorization.

542033321321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 542033321321 its reverse (123123330245), we get a palindrome (665156651566).

The spelling of 542033321321 in words is "five hundred forty-two billion, thirty-three million, three hundred twenty-one thousand, three hundred twenty-one".