3213320020 has 12 divisors (see below), whose sum is σ = 6747972084. Its totient is φ = 1285328000.

The previous prime is 3213319999. The next prime is 3213320021. The reversal of 3213320020 is 200233123.

It can be written as a sum of positive squares in 2 ways, for example, as 1149616836 + 2063703184 = 33906^2 + 45428^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3213319976 and 3213320003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213320021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80332981 + ... + 80333020.

It is an arithmetic number, because the mean of its divisors is an integer number (562331007).

Almost surely, 2^3213320020 is an apocalyptic number.

It is an amenable number.

3213320020 is an abundant number, since it is smaller than the sum of its proper divisors (3534652064).

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

3213320020 is a wasteful number, since it uses less digits than its factorization.

3213320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160666010 (or 160666008 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 3213320020 is about 56686.1536885331. The cubic root of 3213320020 is about 1475.6544096072.

Adding to 3213320020 its reverse (200233123), we get a palindrome (3413553143).

The spelling of 3213320020 in words is "three billion, two hundred thirteen million, three hundred twenty thousand, twenty".