213103020100 has 72 divisors (see below), whose sum is σ = 491644157760. Its totient is φ = 79996625280.

The previous prime is 213103020061. The next prime is 213103020103. The reversal of 213103020100 is 1020301312.

It is not an unprimeable number, because it can be changed into a prime (213103020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752190 + ... + 995989.

It is an arithmetic number, because the mean of its divisors is an integer number (6828391080).

Almost surely, 2^213103020100 is an apocalyptic number.

213103020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213103020100 is an abundant number, since it is smaller than the sum of its proper divisors (278541137660).

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

213103020100 is a wasteful number, since it uses less digits than its factorization.

213103020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748269 (or 1748262 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 213103020100 its reverse (1020301312), we get a palindrome (214123321412).

The spelling of 213103020100 in words is "two hundred thirteen billion, one hundred three million, twenty thousand, one hundred".