52981347121 has 2 divisors, whose sum is σ = 52981347122. Its totient is φ = 52981347120.

The previous prime is 52981347119. The next prime is 52981347149. The reversal of 52981347121 is 12174318925.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27855610000 + 25125737121 = 166900^2 + 158511^2 .

It is a cyclic number.

It is not a de Polignac number, because 52981347121 - 2¹ = 52981347119 is a prime.

Together with 52981347119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52981047121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26490673560 + 26490673561.

It is an arithmetic number, because the mean of its divisors is an integer number (26490673561).

Almost surely, 2^52981347121 is an apocalyptic number.

It is an amenable number.

52981347121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52981347121 is an equidigital number, since it uses as much as digits as its factorization.

52981347121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The spelling of 52981347121 in words is "fifty-two billion, nine hundred eighty-one million, three hundred forty-seven thousand, one hundred twenty-one".