213231012031110 has 128 divisors (see below), whose sum is σ = 540647571373056. Its totient is φ = 53716188753920.

The previous prime is 213231012031069. The next prime is 213231012031111. The reversal of 213231012031110 is 11130210132312.

It is a super-2 number, since 2×213231012031110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231012031111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17043409 + ... + 26775731.

It is an arithmetic number, because the mean of its divisors is an integer number (4223809151352).

Almost surely, 2^{213231012031110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213231012031110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270323785686528).

213231012031110 is an abundant number, since it is smaller than the sum of its proper divisors (327416559341946).

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

213231012031110 is a wasteful number, since it uses less digits than its factorization.

213231012031110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9732750.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 213231012031110 its reverse (11130210132312), we get a palindrome (224361222163422).

The spelling of 213231012031110 in words is "two hundred thirteen trillion, two hundred thirty-one billion, twelve million, thirty-one thousand, one hundred ten".