21130114455 has 24 divisors (see below), whose sum is σ = 36697527360. Its totient is φ = 11247241920.

The previous prime is 21130114451. The next prime is 21130114457. The reversal of 21130114455 is 55441103112.

21130114455 is a `hidden beast` number, since 211 + 3 + 0 + 1 + 1 + 445 + 5 = 666.

It is not a de Polignac number, because 21130114455 - 2² = 21130114451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130114451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438351 + ... + 484160.

It is an arithmetic number, because the mean of its divisors is an integer number (1529063640).

Almost surely, 2^21130114455 is an apocalyptic number.

21130114455 is a deficient number, since it is larger than the sum of its proper divisors (15567412905).

21130114455 is a wasteful number, since it uses less digits than its factorization.

21130114455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923031 (or 923028 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 21130114455 its reverse (55441103112), we get a palindrome (76571217567).

The spelling of 21130114455 in words is "twenty-one billion, one hundred thirty million, one hundred fourteen thousand, four hundred fifty-five".