21311122032130 has 128 divisors (see below), whose sum is σ = 45657089856000. Its totient is φ = 7007331631104.

The previous prime is 21311122032023. The next prime is 21311122032133. The reversal of 21311122032130 is 3123022111312.

It is not an unprimeable number, because it can be changed into a prime (21311122032133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 255797221 + ... + 255880519.

It is an arithmetic number, because the mean of its divisors is an integer number (356696014500).

Almost surely, 2^{21311122032130} is an apocalyptic number.

21311122032130 is an abundant number, since it is smaller than the sum of its proper divisors (24345967823870).

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

21311122032130 is a wasteful number, since it uses less digits than its factorization.

21311122032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84188.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21311122032130 its reverse (3123022111312), we get a palindrome (24434144143442).

The spelling of 21311122032130 in words is "twenty-one trillion, three hundred eleven billion, one hundred twenty-two million, thirty-two thousand, one hundred thirty".