63042123221 has 16 divisors (see below), whose sum is σ = 78604069248. Its totient is φ = 49119921600.

The previous prime is 63042123181. The next prime is 63042123229. The reversal of 63042123221 is 12232124036.

It is a cyclic number.

It is not a de Polignac number, because 63042123221 - 2³⁴ = 45862254037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63042123229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1361771 + ... + 1407303.

It is an arithmetic number, because the mean of its divisors is an integer number (4912754328).

Almost surely, 2^63042123221 is an apocalyptic number.

It is an amenable number.

63042123221 is a deficient number, since it is larger than the sum of its proper divisors (15561946027).

63042123221 is a wasteful number, since it uses less digits than its factorization.

63042123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63532.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 63042123221 its reverse (12232124036), we get a palindrome (75274247257).

The spelling of 63042123221 in words is "sixty-three billion, forty-two million, one hundred twenty-three thousand, two hundred twenty-one".