21130404324112 has 10 divisors (see below), whose sum is σ = 40940158377998. Its totient is φ = 10565202162048.

The previous prime is 21130404324091. The next prime is 21130404324167. The reversal of 21130404324112 is 21142340403112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20098221474816 + 1032182849296 = 4483104^2 + 1015964^2 .

It is a super-2 number, since 2×21130404324112² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 660325135113 + ... + 660325135144.

Almost surely, 2^{21130404324112} is an apocalyptic number.

It is an amenable number.

21130404324112 is a deficient number, since it is larger than the sum of its proper divisors (19809754053886).

21130404324112 is a wasteful number, since it uses less digits than its factorization.

21130404324112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320650270265 (or 1320650270259 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21130404324112 its reverse (21142340403112), we get a palindrome (42272744727224).

The spelling of 21130404324112 in words is "twenty-one trillion, one hundred thirty billion, four hundred four million, three hundred twenty-four thousand, one hundred twelve".