63623420121 has 96 divisors (see below), whose sum is σ = 94804992000. Its totient is φ = 37899290880.

The previous prime is 63623420101. The next prime is 63623420123. The reversal of 63623420121 is 12102432636.

It is not a de Polignac number, because 63623420121 - 2⁵ = 63623420089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63623420123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 319715580 + ... + 319715778.

It is an arithmetic number, because the mean of its divisors is an integer number (987552000).

Almost surely, 2^63623420121 is an apocalyptic number.

It is an amenable number.

63623420121 is a deficient number, since it is larger than the sum of its proper divisors (31181571879).

63623420121 is a wasteful number, since it uses less digits than its factorization.

63623420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 63623420121 its reverse (12102432636), we get a palindrome (75725852757).

The spelling of 63623420121 in words is "sixty-three billion, six hundred twenty-three million, four hundred twenty thousand, one hundred twenty-one".