231213323010 has 64 divisors (see below), whose sum is σ = 570365712000. Its totient is φ = 59942472192.

The previous prime is 231213322969. The next prime is 231213323017. The reversal of 231213323010 is 10323312132.

It is not an unprimeable number, because it can be changed into a prime (231213323017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1314766 + ... + 1480214.

It is an arithmetic number, because the mean of its divisors is an integer number (8911964250).

Almost surely, 2^231213323010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231213323010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285182856000).

231213323010 is an abundant number, since it is smaller than the sum of its proper divisors (339152388990).

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

231213323010 is a wasteful number, since it uses less digits than its factorization.

231213323010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166755.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231213323010 its reverse (10323312132), we get a palindrome (241536635142).

The spelling of 231213323010 in words is "two hundred thirty-one billion, two hundred thirteen million, three hundred twenty-three thousand, ten".