54121122612643 has 2 divisors, whose sum is σ = 54121122612644. Its totient is φ = 54121122612642.

The previous prime is 54121122612587. The next prime is 54121122612751. The reversal of 54121122612643 is 34621622112145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54121122612643 - 2⁹ = 54121122612131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54121122612596 and 54121122612605.

It is not a weakly prime, because it can be changed into another prime (54121122612143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27060561306321 + 27060561306322.

It is an arithmetic number, because the mean of its divisors is an integer number (27060561306322).

Almost surely, 2^{54121122612643} is an apocalyptic number.

54121122612643 is a deficient number, since it is larger than the sum of its proper divisors (1).

54121122612643 is an equidigital number, since it uses as much as digits as its factorization.

54121122612643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

Adding to 54121122612643 its reverse (34621622112145), we get a palindrome (88742744724788).

The spelling of 54121122612643 in words is "fifty-four trillion, one hundred twenty-one billion, one hundred twenty-two million, six hundred twelve thousand, six hundred forty-three".