21113162555130 has 48 divisors (see below), whose sum is σ = 54897364088424. Its totient is φ = 5629854481920.

The previous prime is 21113162555077. The next prime is 21113162555137. The reversal of 21113162555130 is 3155526131112.

21113162555130 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 31 + 62 + 55 + 513 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16839048738681 + 4274113816449 = 4103541^2 + 2067393^2 .

It is not an unprimeable number, because it can be changed into a prime (21113162555137) 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, 5129011 + ... + 8278470.

Almost surely, 2^{21113162555130} is an apocalyptic number.

21113162555130 is an abundant number, since it is smaller than the sum of its proper divisors (33784201533294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113162555130 is a wasteful number, since it uses less digits than its factorization.

21113162555130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13424991 (or 13424988 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Adding to 21113162555130 its reverse (3155526131112), we get a palindrome (24268688686242).

The spelling of 21113162555130 in words is "twenty-one trillion, one hundred thirteen billion, one hundred sixty-two million, five hundred fifty-five thousand, one hundred thirty".