142243121313020 has 192 divisors, whose sum is σ = 372097570231296. Its totient is φ = 44472309811200.

The previous prime is 142243121312977. The next prime is 142243121313031. The reversal of 142243121313020 is 20313121342241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4202019095 + ... + 4202052945.

It is an arithmetic number, because the mean of its divisors is an integer number (1938008178288).

Almost surely, 2^{142243121313020} is an apocalyptic number.

142243121313020 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 142243121313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186048785115648).

142243121313020 is an abundant number, since it is smaller than the sum of its proper divisors (229854448918276).

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

142243121313020 is a wasteful number, since it uses less digits than its factorization.

142243121313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61780 (or 61778 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 142243121313020 its reverse (20313121342241), we get a palindrome (162556242655261).

The spelling of 142243121313020 in words is "one hundred forty-two trillion, two hundred forty-three billion, one hundred twenty-one million, three hundred thirteen thousand, twenty".