63020121 has 4 divisors (see below), whose sum is σ = 84026832. Its totient is φ = 42013412.

The previous prime is 63020101. The next prime is 63020129. The reversal of 63020121 is 12102036.

63020121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63020121 - 2¹⁰ = 63019097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63020121.

It is not an unprimeable number, because it can be changed into a prime (63020129) 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 in 3 ways as a sum of consecutive naturals, for example, 10503351 + ... + 10503356.

It is an arithmetic number, because the mean of its divisors is an integer number (21006708).

Almost surely, 2^63020121 is an apocalyptic number.

It is an amenable number.

63020121 is a deficient number, since it is larger than the sum of its proper divisors (21006711).

63020121 is a wasteful number, since it uses less digits than its factorization.

63020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21006710.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 63020121 is about 7938.5213358660. The cubic root of 63020121 is about 397.9480774500.

Adding to 63020121 its reverse (12102036), we get a palindrome (75122157).

The spelling of 63020121 in words is "sixty-three million, twenty thousand, one hundred twenty-one".