243020431202142 has 64 divisors (see below), whose sum is σ = 542871810284544. Its totient is φ = 71894140813440.

The previous prime is 243020431202113. The next prime is 243020431202147. The reversal of 243020431202142 is 241202134020342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243020431202147) 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, 97437453 + ... + 99900440.

It is an arithmetic number, because the mean of its divisors is an integer number (8482372035696).

Almost surely, 2^{243020431202142} is an apocalyptic number.

243020431202142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243020431202142 is an abundant number, since it is smaller than the sum of its proper divisors (299851379082402).

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

243020431202142 is a wasteful number, since it uses less digits than its factorization.

243020431202142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197338353.

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

Adding to 243020431202142 its reverse (241202134020342), we get a palindrome (484222565222484).

The spelling of 243020431202142 in words is "two hundred forty-three trillion, twenty billion, four hundred thirty-one million, two hundred two thousand, one hundred forty-two".