213100210020 has 48 divisors (see below), whose sum is σ = 597214957248. Its totient is φ = 56775830400.

The previous prime is 213100209997. The next prime is 213100210021. The reversal of 213100210020 is 20012001312.

213100210020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 213100209978 and 213100210005.

It is not an unprimeable number, because it can be changed into a prime (213100210021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1522806 + ... + 1656845.

It is an arithmetic number, because the mean of its divisors is an integer number (12441978276).

Almost surely, 2^213100210020 is an apocalyptic number.

213100210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213100210020 is an abundant number, since it is smaller than the sum of its proper divisors (384114747228).

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

213100210020 is a wasteful number, since it uses less digits than its factorization.

213100210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180780 (or 3180778 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 213100210020 its reverse (20012001312), we get a palindrome (233112211332).

The spelling of 213100210020 in words is "two hundred thirteen billion, one hundred million, two hundred ten thousand, twenty".