213020232100 has 36 divisors (see below), whose sum is σ = 497811899284. Its totient is φ = 78653623680.

The previous prime is 213020232077. The next prime is 213020232101. The reversal of 213020232100 is 1232020312.

It can be written as a sum of positive squares in 6 ways, for example, as 845762724 + 212174469376 = 29082^2 + 460624^2 .

It is not an unprimeable number, because it can be changed into a prime (213020232101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81929559 + ... + 81932158.

Almost surely, 2^213020232100 is an apocalyptic number.

213020232100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213020232100 is an abundant number, since it is smaller than the sum of its proper divisors (284791667184).

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

213020232100 is a wasteful number, since it uses less digits than its factorization.

213020232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163861744 (or 163861737 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 213020232100 its reverse (1232020312), we get a palindrome (214252252412).

The spelling of 213020232100 in words is "two hundred thirteen billion, twenty million, two hundred thirty-two thousand, one hundred".