60400005121 has 2 divisors, whose sum is σ = 60400005122. Its totient is φ = 60400005120.

The previous prime is 60400005119. The next prime is 60400005139. The reversal of 60400005121 is 12150000406.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57830630400 + 2569374721 = 240480^2 + 50689^2 .

It is a cyclic number.

It is not a de Polignac number, because 60400005121 - 2¹ = 60400005119 is a prime.

Together with 60400005119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (60400005191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30200002560 + 30200002561.

It is an arithmetic number, because the mean of its divisors is an integer number (30200002561).

Almost surely, 2^60400005121 is an apocalyptic number.

It is an amenable number.

60400005121 is a deficient number, since it is larger than the sum of its proper divisors (1).

60400005121 is an equidigital number, since it uses as much as digits as its factorization.

60400005121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 60400005121 its reverse (12150000406), we get a palindrome (72550005527).

The spelling of 60400005121 in words is "sixty billion, four hundred million, five thousand, one hundred twenty-one".