213010031320 has 64 divisors (see below), whose sum is σ = 504791676000. Its totient is φ = 80672514048.

The previous prime is 213010031317. The next prime is 213010031327. The reversal of 213010031320 is 23130010312.

It is a junction number, because it is equal to n+sod(n) for n = 213010031294 and 213010031303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213010031327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236216 + ... + 1397944.

Almost surely, 2^213010031320 is an apocalyptic number.

213010031320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213010031320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252395838000).

213010031320 is an abundant number, since it is smaller than the sum of its proper divisors (291781644680).

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

213010031320 is a wasteful number, since it uses less digits than its factorization.

213010031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163492 (or 163488 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 213010031320 its reverse (23130010312), we get a palindrome (236140041632).

The spelling of 213010031320 in words is "two hundred thirteen billion, ten million, thirty-one thousand, three hundred twenty".