20123320001232 has 80 divisors (see below), whose sum is σ = 62538638620160. Its totient is φ = 5446913682816.

The previous prime is 20123320001209. The next prime is 20123320001261. The reversal of 20123320001232 is 23210002332102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20123320001199 and 20123320001208.

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, 1576068178 + ... + 1576080945.

It is an arithmetic number, because the mean of its divisors is an integer number (781732982752).

Almost surely, 2^{20123320001232} is an apocalyptic number.

It is an amenable number.

20123320001232 is an abundant number, since it is smaller than the sum of its proper divisors (42415318618928).

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

20123320001232 is a wasteful number, since it uses less digits than its factorization.

20123320001232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152149160 (or 3152149154 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20123320001232 its reverse (23210002332102), we get a palindrome (43333322333334).

The spelling of 20123320001232 in words is "twenty trillion, one hundred twenty-three billion, three hundred twenty million, one thousand, two hundred thirty-two".