142121323243124 has 24 divisors (see below), whose sum is σ = 252792721204296. Its totient is φ = 69894860544000.

The previous prime is 142121323243103. The next prime is 142121323243157. The reversal of 142121323243124 is 421342323121241.

It can be written as a sum of positive squares in 4 ways, for example, as 3458922993124 + 138662400250000 = 1859818^2 + 11775500^2 .

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, 16180364 + ... + 23367644.

It is an arithmetic number, because the mean of its divisors is an integer number (10533030050179).

Almost surely, 2^{142121323243124} is an apocalyptic number.

It is an amenable number.

142121323243124 is a deficient number, since it is larger than the sum of its proper divisors (110671397961172).

142121323243124 is a wasteful number, since it uses less digits than its factorization.

142121323243124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7268387 (or 7268385 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

Adding to 142121323243124 its reverse (421342323121241), we get a palindrome (563463646364365).

The spelling of 142121323243124 in words is "one hundred forty-two trillion, one hundred twenty-one billion, three hundred twenty-three million, two hundred forty-three thousand, one hundred twenty-four".