142123300000000 has 648 divisors, whose sum is σ = 395226360144000. Its totient is φ = 50563200000000.

The previous prime is 142123299999959. The next prime is 142123300000021. The reversal of 142123300000000 is 3321241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a self number, because there is not a number n which added to its sum of digits gives 142123300000000.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 51699998626 + ... + 51700001374.

Almost surely, 2^{142123300000000} is an apocalyptic number.

142123300000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142123300000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197613180072000).

142123300000000 is an abundant number, since it is smaller than the sum of its proper divisors (253103060144000).

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

142123300000000 is an frugal number, since it uses more digits than its factorization.

142123300000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 142123300000000 its reverse (3321241), we get a palindrome (142123303321241).

The spelling of 142123300000000 in words is "one hundred forty-two trillion, one hundred twenty-three billion, three hundred million", and thus it is an aban number.