142400043122 has 8 divisors (see below), whose sum is σ = 213601953900. Its totient is φ = 71199391824.

The previous prime is 142400043119. The next prime is 142400043143. The reversal of 142400043122 is 221340004241.

It can be written as a sum of positive squares in 2 ways, for example, as 139779524641 + 2620518481 = 373871^2 + 51191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×142400043122² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54404 + ... + 536432.

Almost surely, 2^142400043122 is an apocalyptic number.

142400043122 is a deficient number, since it is larger than the sum of its proper divisors (71201910778).

142400043122 is a wasteful number, since it uses less digits than its factorization.

142400043122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629740.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 142400043122 its reverse (221340004241), we get a palindrome (363740047363).

The spelling of 142400043122 in words is "one hundred forty-two billion, four hundred million, forty-three thousand, one hundred twenty-two".