243122054142 has 16 divisors (see below), whose sum is σ = 530448118272. Its totient is φ = 73673349720.

The previous prime is 243122054111. The next prime is 243122054167. The reversal of 243122054142 is 241450221342.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841833678 + ... + 1841833809.

It is an arithmetic number, because the mean of its divisors is an integer number (33153007392).

Almost surely, 2^243122054142 is an apocalyptic number.

243122054142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243122054142 is an abundant number, since it is smaller than the sum of its proper divisors (287326064130).

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

243122054142 is a wasteful number, since it uses less digits than its factorization.

243122054142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683667503.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 243122054142 its reverse (241450221342), we get a palindrome (484572275484).

The spelling of 243122054142 in words is "two hundred forty-three billion, one hundred twenty-two million, fifty-four thousand, one hundred forty-two".