142124233240 has 128 divisors (see below), whose sum is σ = 352787400000. Its totient is φ = 51526717440.

The previous prime is 142124233189. The next prime is 142124233249. The reversal of 142124233240 is 42332421241.

It is a junction number, because it is equal to n+sod(n) for n = 142124233199 and 142124233208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142124233249) 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, 18576936 + ... + 18584584.

Almost surely, 2^142124233240 is an apocalyptic number.

142124233240 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 142124233240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176393700000).

142124233240 is an abundant number, since it is smaller than the sum of its proper divisors (210663166760).

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

142124233240 is a wasteful number, since it uses less digits than its factorization.

142124233240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042 (or 8016 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 142124233240 its reverse (42332421241), we get a palindrome (184456654481).

The spelling of 142124233240 in words is "one hundred forty-two billion, one hundred twenty-four million, two hundred thirty-three thousand, two hundred forty".