243142213142 has 32 divisors (see below), whose sum is σ = 396666095328. Its totient is φ = 111310004736.

The previous prime is 243142213129. The next prime is 243142213157. The reversal of 243142213142 is 241312241342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11508953 + ... + 11530059.

It is an arithmetic number, because the mean of its divisors is an integer number (12395815479).

Almost surely, 2^243142213142 is an apocalyptic number.

243142213142 is a deficient number, since it is larger than the sum of its proper divisors (153523882186).

243142213142 is a wasteful number, since it uses less digits than its factorization.

243142213142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30320.

The product of its digits is 9216, while the sum is 29.

Adding to 243142213142 its reverse (241312241342), we get a palindrome (484454454484).

The spelling of 243142213142 in words is "two hundred forty-three billion, one hundred forty-two million, two hundred thirteen thousand, one hundred forty-two".