213020331320 has 16 divisors (see below), whose sum is σ = 479295745560. Its totient is φ = 85208132512.

The previous prime is 213020331313. The next prime is 213020331373. The reversal of 213020331320 is 23133020312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 213020331292 and 213020331301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662754102 + ... + 2662754181.

Almost surely, 2^213020331320 is an apocalyptic number.

213020331320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213020331320 is an abundant number, since it is smaller than the sum of its proper divisors (266275414240).

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

213020331320 is a wasteful number, since it uses less digits than its factorization.

213020331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325508294 (or 5325508290 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213020331320 its reverse (23133020312), we get a palindrome (236153351632).

The spelling of 213020331320 in words is "two hundred thirteen billion, twenty million, three hundred thirty-one thousand, three hundred twenty".