213323024442 has 48 divisors (see below), whose sum is σ = 470041790400. Its totient is φ = 64493953920.

The previous prime is 213323024441. The next prime is 213323024459. The reversal of 213323024442 is 244420323312.

It is a super-2 number, since 2×213323024442² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213323024441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24942 + ... + 653657.

It is an arithmetic number, because the mean of its divisors is an integer number (9792537300).

Almost surely, 2^213323024442 is an apocalyptic number.

213323024442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 213323024442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235020895200).

213323024442 is an abundant number, since it is smaller than the sum of its proper divisors (256718765958).

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

213323024442 is a wasteful number, since it uses less digits than its factorization.

213323024442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679059 (or 679048 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 213323024442 its reverse (244420323312), we get a palindrome (457743347754).

The spelling of 213323024442 in words is "two hundred thirteen billion, three hundred twenty-three million, twenty-four thousand, four hundred forty-two".