54100420243 has 2 divisors, whose sum is σ = 54100420244. Its totient is φ = 54100420242.

The previous prime is 54100420207. The next prime is 54100420267. The reversal of 54100420243 is 34202400145.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54100420243 - 2¹⁷ = 54100289171 is a prime.

It is not a weakly prime, because it can be changed into another prime (54100420643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27050210121 + 27050210122.

It is an arithmetic number, because the mean of its divisors is an integer number (27050210122).

Almost surely, 2^54100420243 is an apocalyptic number.

54100420243 is a deficient number, since it is larger than the sum of its proper divisors (1).

54100420243 is an equidigital number, since it uses as much as digits as its factorization.

54100420243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 54100420243 its reverse (34202400145), we get a palindrome (88302820388).

The spelling of 54100420243 in words is "fifty-four billion, one hundred million, four hundred twenty thousand, two hundred forty-three".