213243104100 has 144 divisors (see below), whose sum is σ = 675706127040. Its totient is φ = 51600883200.

The previous prime is 213243104059. The next prime is 213243104101. The reversal of 213243104100 is 1401342312.

It is not an unprimeable number, because it can be changed into a prime (213243104101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 233271 + ... + 693470.

It is an arithmetic number, because the mean of its divisors is an integer number (4692403660).

Almost surely, 2^213243104100 is an apocalyptic number.

213243104100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213243104100 is an abundant number, since it is smaller than the sum of its proper divisors (462463022940).

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

213243104100 is a wasteful number, since it uses less digits than its factorization.

213243104100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926830 (or 926823 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213243104100 its reverse (1401342312), we get a palindrome (214644446412).

The spelling of 213243104100 in words is "two hundred thirteen billion, two hundred forty-three million, one hundred four thousand, one hundred".