524100121 has 2 divisors, whose sum is σ = 524100122. Its totient is φ = 524100120.

The previous prime is 524100119. The next prime is 524100139. The reversal of 524100121 is 121001425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 516198400 + 7901721 = 22720^2 + 2811^2 .

It is a cyclic number.

It is not a de Polignac number, because 524100121 - 2¹ = 524100119 is a prime.

Together with 524100119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 524100095 and 524100104.

It is not a weakly prime, because it can be changed into another prime (524100821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262050060 + 262050061.

It is an arithmetic number, because the mean of its divisors is an integer number (262050061).

Almost surely, 2^524100121 is an apocalyptic number.

It is an amenable number.

524100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

524100121 is an equidigital number, since it uses as much as digits as its factorization.

524100121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 524100121 is about 22893.2330831624. The cubic root of 524100121 is about 806.2531417781.

Adding to 524100121 its reverse (121001425), we get a palindrome (645101546).

The spelling of 524100121 in words is "five hundred twenty-four million, one hundred thousand, one hundred twenty-one".