21022313020432 has 40 divisors (see below), whose sum is σ = 42566127468480. Its totient is φ = 10038892913280.

The previous prime is 21022313020411. The next prime is 21022313020517. The reversal of 21022313020432 is 23402031322012.

It is a junction number, because it is equal to n+sod(n) for n = 21022313020397 and 21022313020406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43100319 + ... + 43585342.

It is an arithmetic number, because the mean of its divisors is an integer number (1064153186712).

Almost surely, 2^{21022313020432} is an apocalyptic number.

It is an amenable number.

21022313020432 is an abundant number, since it is smaller than the sum of its proper divisors (21543814448048).

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

21022313020432 is a wasteful number, since it uses less digits than its factorization.

21022313020432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86686351 (or 86686345 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21022313020432 its reverse (23402031322012), we get a palindrome (44424344342444).

The spelling of 21022313020432 in words is "twenty-one trillion, twenty-two billion, three hundred thirteen million, twenty thousand, four hundred thirty-two".