240142143122420 has 192 divisors, whose sum is σ = 632438365708800. Its totient is φ = 74408810250240.

The previous prime is 240142143122411. The next prime is 240142143122423. The reversal of 240142143122420 is 24221341241042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240142143122423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2762465516 + ... + 2762552444.

It is an arithmetic number, because the mean of its divisors is an integer number (3293949821400).

Almost surely, 2^{240142143122420} is an apocalyptic number.

240142143122420 is a gapful number since it is divisible by the number (20) 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 240142143122420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316219182854400).

240142143122420 is an abundant number, since it is smaller than the sum of its proper divisors (392296222586380).

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

240142143122420 is a wasteful number, since it uses less digits than its factorization.

240142143122420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97498 (or 97496 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 240142143122420 its reverse (24221341241042), we get a palindrome (264363484363462).

The spelling of 240142143122420 in words is "two hundred forty trillion, one hundred forty-two billion, one hundred forty-three million, one hundred twenty-two thousand, four hundred twenty".