3211030020 has 144 divisors (see below), whose sum is σ = 10352397888. Its totient is φ = 737406720.

The previous prime is 3211029953. The next prime is 3211030033. The reversal of 3211030020 is 200301123.

It is a happy number.

3211030020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 3211029978 and 3211030005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 231522 + ... + 244998.

It is an arithmetic number, because the mean of its divisors is an integer number (71891652).

Almost surely, 2^3211030020 is an apocalyptic number.

3211030020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3211030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5176198944).

3211030020 is an abundant number, since it is smaller than the sum of its proper divisors (7141367868).

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

3211030020 is a wasteful number, since it uses less digits than its factorization.

3211030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13538 (or 13517 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3211030020 is about 56665.9511523454. The cubic root of 3211030020 is about 1475.3037803883.

Adding to 3211030020 its reverse (200301123), we get a palindrome (3411331143).

The spelling of 3211030020 in words is "three billion, two hundred eleven million, thirty thousand, twenty".