63304252121 has 24 divisors (see below), whose sum is σ = 71455754496. Its totient is φ = 55578510720.

The previous prime is 63304252091. The next prime is 63304252169. The reversal of 63304252121 is 12125240336.

It is a happy number.

It is not a de Polignac number, because 63304252121 - 2³⁴ = 46124382937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63304252021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7634840 + ... + 7643126.

It is an arithmetic number, because the mean of its divisors is an integer number (2977323104).

Almost surely, 2^63304252121 is an apocalyptic number.

It is an amenable number.

63304252121 is a deficient number, since it is larger than the sum of its proper divisors (8151502375).

63304252121 is a wasteful number, since it uses less digits than its factorization.

63304252121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8609 (or 8472 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 63304252121 its reverse (12125240336), we get a palindrome (75429492457).

The spelling of 63304252121 in words is "sixty-three billion, three hundred four million, two hundred fifty-two thousand, one hundred twenty-one".