3231122420 has 48 divisors (see below), whose sum is σ = 6907974528. Its totient is φ = 1269164160.

The previous prime is 3231122417. The next prime is 3231122437. The reversal of 3231122420 is 242211323.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3231122392 and 3231122401.

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, 885119 + ... + 888761.

It is an arithmetic number, because the mean of its divisors is an integer number (143916136).

Almost surely, 2^3231122420 is an apocalyptic number.

It is an amenable number.

3231122420 is an abundant number, since it is smaller than the sum of its proper divisors (3676852108).

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

3231122420 is a wasteful number, since it uses less digits than its factorization.

3231122420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440 (or 4438 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3231122420 is about 56842.9628010363. The cubic root of 3231122420 is about 1478.3745271938.

Adding to 3231122420 its reverse (242211323), we get a palindrome (3473333743).

The spelling of 3231122420 in words is "three billion, two hundred thirty-one million, one hundred twenty-two thousand, four hundred twenty".