21020011432230 has 32 divisors (see below), whose sum is σ = 53103186777600. Its totient is φ = 5310318677472.

The previous prime is 21020011432229. The next prime is 21020011432247. The reversal of 21020011432230 is 3223411002012.

It is a super-2 number, since 2×21020011432230² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21020011432197 and 21020011432206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18438605950 + ... + 18438607089.

It is an arithmetic number, because the mean of its divisors is an integer number (1659474586800).

Almost surely, 2^{21020011432230} is an apocalyptic number.

21020011432230 is an abundant number, since it is smaller than the sum of its proper divisors (32083175345370).

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

21020011432230 is a wasteful number, since it uses less digits than its factorization.

21020011432230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36877213068.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21020011432230 its reverse (3223411002012), we get a palindrome (24243422434242).

The spelling of 21020011432230 in words is "twenty-one trillion, twenty billion, eleven million, four hundred thirty-two thousand, two hundred thirty".