3213100100 has 72 divisors (see below), whose sum is σ = 7986363840. Its totient is φ = 1099163520.

The previous prime is 3213100097. The next prime is 3213100117. The reversal of 3213100100 is 10013123.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321986 + ... + 331814.

It is an arithmetic number, because the mean of its divisors is an integer number (110921720).

Almost surely, 2^3213100100 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 3213100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3993181920).

3213100100 is an abundant number, since it is smaller than the sum of its proper divisors (4773263740).

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

3213100100 is a wasteful number, since it uses less digits than its factorization.

3213100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10317 (or 10310 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 3213100100 is about 56684.2138518300. The cubic root of 3213100100 is about 1475.6207441854.

Adding to 3213100100 its reverse (10013123), we get a palindrome (3223113223).

The spelling of 3213100100 in words is "three billion, two hundred thirteen million, one hundred thousand, one hundred".