3213210220311 has 64 divisors (see below), whose sum is σ = 5398752837632. Its totient is φ = 1654493081472.

The previous prime is 3213210220291. The next prime is 3213210220403. The reversal of 3213210220311 is 1130220123123.

It is not a de Polignac number, because 3213210220311 - 2⁷ = 3213210220183 is a prime.

It is a super-2 number, since 2×3213210220311² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213210222311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20146866 + ... + 20305728.

It is an arithmetic number, because the mean of its divisors is an integer number (84355513088).

Almost surely, 2^{3213210220311} is an apocalyptic number.

3213210220311 is a deficient number, since it is larger than the sum of its proper divisors (2185542617321).

3213210220311 is a wasteful number, since it uses less digits than its factorization.

3213210220311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160652.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3213210220311 its reverse (1130220123123), we get a palindrome (4343430343434).

The spelling of 3213210220311 in words is "three trillion, two hundred thirteen billion, two hundred ten million, two hundred twenty thousand, three hundred eleven".