63103002381 has 24 divisors (see below), whose sum is σ = 91592051616. Its totient is φ = 41864479200.

The previous prime is 63103002271. The next prime is 63103002397. The reversal of 63103002381 is 18320030136.

It is a happy number.

63103002381 is a `hidden beast` number, since 631 + 0 + 3 + 0 + 0 + 23 + 8 + 1 = 666.

It is not a de Polignac number, because 63103002381 - 2¹⁸ = 63102740237 is a prime.

It is a super-2 number, since 2×63103002381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63103002481) 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, 1952806 + ... + 1984856.

It is an arithmetic number, because the mean of its divisors is an integer number (3816335484).

Almost surely, 2^63103002381 is an apocalyptic number.

It is an amenable number.

63103002381 is a deficient number, since it is larger than the sum of its proper divisors (28489049235).

63103002381 is a wasteful number, since it uses less digits than its factorization.

63103002381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33113 (or 33110 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 63103002381 in words is "sixty-three billion, one hundred three million, two thousand, three hundred eighty-one".