20120320331032 has 16 divisors (see below), whose sum is σ = 37783373372640. Its totient is φ = 10044754098336.

The previous prime is 20120320331021. The next prime is 20120320331051. The reversal of 20120320331032 is 23013302302102.

It is a junction number, because it is equal to n+sod(n) for n = 20120320330994 and 20120320331012.

It is a congruent number.

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, 1925752848 + ... + 1925763295.

It is an arithmetic number, because the mean of its divisors is an integer number (2361460835790).

Almost surely, 2^{20120320331032} is an apocalyptic number.

It is an amenable number.

20120320331032 is a deficient number, since it is larger than the sum of its proper divisors (17663053041608).

20120320331032 is a wasteful number, since it uses less digits than its factorization.

20120320331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851516802 (or 3851516798 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20120320331032 its reverse (23013302302102), we get a palindrome (43133622633134).

The spelling of 20120320331032 in words is "twenty trillion, one hundred twenty billion, three hundred twenty million, three hundred thirty-one thousand, thirty-two".