63130121 has 4 divisors (see below), whose sum is σ = 63146244. Its totient is φ = 63114000.

The previous prime is 63130117. The next prime is 63130159. The reversal of 63130121 is 12103136.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22934521 + 40195600 = 4789^2 + 6340^2 .

It is a cyclic number.

It is not a de Polignac number, because 63130121 - 2² = 63130117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63130121.

It is not an unprimeable number, because it can be changed into a prime (63130721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991 + ... + 11411.

It is an arithmetic number, because the mean of its divisors is an integer number (15786561).

Almost surely, 2^63130121 is an apocalyptic number.

It is an amenable number.

63130121 is a deficient number, since it is larger than the sum of its proper divisors (16123).

63130121 is an equidigital number, since it uses as much as digits as its factorization.

63130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16122.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 63130121 is about 7945.4465576203. The cubic root of 63130121 is about 398.1794789111.

Adding to 63130121 its reverse (12103136), we get a palindrome (75233257).

The spelling of 63130121 in words is "sixty-three million, one hundred thirty thousand, one hundred twenty-one".