63121165041 has 12 divisors (see below), whose sum is σ = 92508154256. Its totient is φ = 38255251320.

The previous prime is 63121165007. The next prime is 63121165049. The reversal of 63121165041 is 14056112136.

It is a happy number.

It is not a de Polignac number, because 63121165041 - 2¹⁰ = 63121164017 is a prime.

It is a super-2 number, since 2×63121165041² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63121165049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86943391 + ... + 86944116.

Almost surely, 2^63121165041 is an apocalyptic number.

It is an amenable number.

63121165041 is a deficient number, since it is larger than the sum of its proper divisors (29386989215).

63121165041 is a wasteful number, since it uses less digits than its factorization.

63121165041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173887532 (or 173887521 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 63121165041 its reverse (14056112136), we get a palindrome (77177277177).

The spelling of 63121165041 in words is "sixty-three billion, one hundred twenty-one million, one hundred sixty-five thousand, forty-one".