213003043420 has 24 divisors (see below), whose sum is σ = 447331593744. Its totient is φ = 85196416896.

The previous prime is 213003043417. The next prime is 213003043441. The reversal of 213003043420 is 24340300312.

It is a happy number.

213003043420 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213003043391 and 213003043400.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 75264 + ... + 657016.

It is an arithmetic number, because the mean of its divisors is an integer number (18638816406).

Almost surely, 2^213003043420 is an apocalyptic number.

213003043420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213003043420 is an abundant number, since it is smaller than the sum of its proper divisors (234328550324).

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

213003043420 is a wasteful number, since it uses less digits than its factorization.

213003043420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600069 (or 600067 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 213003043420 its reverse (24340300312), we get a palindrome (237343343732).

The spelling of 213003043420 in words is "two hundred thirteen billion, three million, forty-three thousand, four hundred twenty".