213142234032442 has 128 divisors (see below), whose sum is σ = 391339955543040. Its totient is φ = 85759321536000.

The previous prime is 213142234032433. The next prime is 213142234032451. The reversal of 213142234032442 is 244230432241312.

It is an interprime number because it is at equal distance from previous prime (213142234032433) and next prime (213142234032451).

It is a super-2 number, since 2×213142234032442² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7451729713 + ... + 7451758315.

It is an arithmetic number, because the mean of its divisors is an integer number (3057343402680).

Almost surely, 2^{213142234032442} is an apocalyptic number.

213142234032442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213142234032442 is a deficient number, since it is larger than the sum of its proper divisors (178197721510598).

213142234032442 is a wasteful number, since it uses less digits than its factorization.

213142234032442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39500.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 213142234032442 its reverse (244230432241312), we get a palindrome (457372666273754).

The spelling of 213142234032442 in words is "two hundred thirteen trillion, one hundred forty-two billion, two hundred thirty-four million, thirty-two thousand, four hundred forty-two".