3121321203232 has 48 divisors (see below), whose sum is σ = 6469239268800. Its totient is φ = 1478357879040.

The previous prime is 3121321203211. The next prime is 3121321203269. The reversal of 3121321203232 is 2323021231213.

It is a junction number, because it is equal to n+sod(n) for n = 3121321203197 and 3121321203206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5339482 + ... + 5895142.

It is an arithmetic number, because the mean of its divisors is an integer number (134775818100).

Almost surely, 2^{3121321203232} is an apocalyptic number.

3121321203232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3121321203232 is an abundant number, since it is smaller than the sum of its proper divisors (3347918065568).

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

3121321203232 is a wasteful number, since it uses less digits than its factorization.

3121321203232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564929 (or 564921 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3121321203232 its reverse (2323021231213), we get a palindrome (5444342434445).

The spelling of 3121321203232 in words is "three trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred three thousand, two hundred thirty-two".