213232142442 has 64 divisors (see below), whose sum is σ = 493014936960. Its totient is φ = 60865996800.

The previous prime is 213232142437. The next prime is 213232142447. The reversal of 213232142442 is 244241232312.

It is an interprime number because it is at equal distance from previous prime (213232142437) and next prime (213232142447).

It is not an unprimeable number, because it can be changed into a prime (213232142447) 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, 1280143 + ... + 1437090.

It is an arithmetic number, because the mean of its divisors is an integer number (7703358390).

Almost surely, 2^213232142442 is an apocalyptic number.

213232142442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213232142442 is an abundant number, since it is smaller than the sum of its proper divisors (279782794518).

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

213232142442 is a wasteful number, since it uses less digits than its factorization.

213232142442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717319.

The product of its digits is 18432, while the sum is 30.

Adding to 213232142442 its reverse (244241232312), we get a palindrome (457473374754).

The spelling of 213232142442 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred forty-two thousand, four hundred forty-two".