54173811121 has 2 divisors, whose sum is σ = 54173811122. Its totient is φ = 54173811120.

The previous prime is 54173811119. The next prime is 54173811127. The reversal of 54173811121 is 12111837145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53194809600 + 979001521 = 230640^2 + 31289^2 .

It is a cyclic number.

It is not a de Polignac number, because 54173811121 - 2¹ = 54173811119 is a prime.

It is a super-2 number, since 2×54173811121² (a number of 22 digits) contains 22 as substring.

Together with 54173811119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54173811127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27086905560 + 27086905561.

It is an arithmetic number, because the mean of its divisors is an integer number (27086905561).

Almost surely, 2^54173811121 is an apocalyptic number.

It is an amenable number.

54173811121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54173811121 is an equidigital number, since it uses as much as digits as its factorization.

54173811121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 34.

The spelling of 54173811121 in words is "fifty-four billion, one hundred seventy-three million, eight hundred eleven thousand, one hundred twenty-one".