54101321 has 2 divisors, whose sum is σ = 54101322. Its totient is φ = 54101320.

The previous prime is 54101279. The next prime is 54101351. The reversal of 54101321 is 12310145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49857721 + 4243600 = 7061^2 + 2060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54101321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54101321.

It is not a weakly prime, because it can be changed into another prime (54101351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27050660 + 27050661.

It is an arithmetic number, because the mean of its divisors is an integer number (27050661).

Almost surely, 2^54101321 is an apocalyptic number.

It is an amenable number.

54101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

54101321 is an equidigital number, since it uses as much as digits as its factorization.

54101321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 54101321 is about 7355.3600183812. The cubic root of 54101321 is about 378.2125681214.

Adding to 54101321 its reverse (12310145), we get a palindrome (66411466).

The spelling of 54101321 in words is "fifty-four million, one hundred one thousand, three hundred twenty-one".