20324223231432 has 16 divisors (see below), whose sum is σ = 50810558078640. Its totient is φ = 6774741077136.

The previous prime is 20324223231397. The next prime is 20324223231443. The reversal of 20324223231432 is 23413232242302.

It is a super-2 number, since 2×20324223231432² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20324223231393 and 20324223231402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423421317298 + ... + 423421317345.

It is an arithmetic number, because the mean of its divisors is an integer number (3175659879915).

Almost surely, 2^{20324223231432} is an apocalyptic number.

It is an amenable number.

20324223231432 is an abundant number, since it is smaller than the sum of its proper divisors (30486334847208).

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

20324223231432 is a wasteful number, since it uses less digits than its factorization.

20324223231432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846842634652 (or 846842634648 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 20324223231432 its reverse (23413232242302), we get a palindrome (43737455473734).

The spelling of 20324223231432 in words is "twenty trillion, three hundred twenty-four billion, two hundred twenty-three million, two hundred thirty-one thousand, four hundred thirty-two".