21041112031230 has 64 divisors (see below), whose sum is σ = 50898939936768. Its totient is φ = 5566493237760.

The previous prime is 21041112031211. The next prime is 21041112031231. The reversal of 21041112031230 is 3213021114012.

It is a junction number, because it is equal to n+sod(n) for n = 21041112031197 and 21041112031206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21041112031231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78935875 + ... + 79201985.

It is an arithmetic number, because the mean of its divisors is an integer number (795295936512).

Almost surely, 2^{21041112031230} is an apocalyptic number.

21041112031230 is an abundant number, since it is smaller than the sum of its proper divisors (29857827905538).

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

21041112031230 is a wasteful number, since it uses less digits than its factorization.

21041112031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287001.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21041112031230 its reverse (3213021114012), we get a palindrome (24254133145242).

The spelling of 21041112031230 in words is "twenty-one trillion, forty-one billion, one hundred twelve million, thirty-one thousand, two hundred thirty".