213020420424 has 32 divisors (see below), whose sum is σ = 608629773120. Its totient is φ = 60862977216.

The previous prime is 213020420401. The next prime is 213020420429. The reversal of 213020420424 is 424024020312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 213020420394 and 213020420403.

It is not an unprimeable number, because it can be changed into a prime (213020420429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633989179 + ... + 633989514.

It is an arithmetic number, because the mean of its divisors is an integer number (19019680410).

Almost surely, 2^213020420424 is an apocalyptic number.

213020420424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213020420424 is an abundant number, since it is smaller than the sum of its proper divisors (395609352696).

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

213020420424 is a wasteful number, since it uses less digits than its factorization.

213020420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267978709 (or 1267978705 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 213020420424 its reverse (424024020312), we get a palindrome (637044440736).

The spelling of 213020420424 in words is "two hundred thirteen billion, twenty million, four hundred twenty thousand, four hundred twenty-four".