3121220030032 has 80 divisors (see below), whose sum is σ = 6550362000000. Its totient is φ = 1432201738752.

The previous prime is 3121220030009. The next prime is 3121220030053. The reversal of 3121220030032 is 2300300221213.

3121220030032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3121220029991 and 3121220030009.

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, 320153094 + ... + 320162842.

It is an arithmetic number, because the mean of its divisors is an integer number (81879525000).

Almost surely, 2^{3121220030032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121220030032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3275181000000).

3121220030032 is an abundant number, since it is smaller than the sum of its proper divisors (3429141969968).

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

3121220030032 is a wasteful number, since it uses less digits than its factorization.

3121220030032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18548 (or 18542 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 3121220030032 its reverse (2300300221213), we get a palindrome (5421520251245).

The spelling of 3121220030032 in words is "three trillion, one hundred twenty-one billion, two hundred twenty million, thirty thousand, thirty-two".