142321205112256 has 28 divisors (see below), whose sum is σ = 290051577653368. Its totient is φ = 69237343026432.

The previous prime is 142321205112253. The next prime is 142321205112319. The reversal of 142321205112256 is 652211502123241.

It is a super-2 number, since 2×142321205112256² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321205112253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30050927766 + ... + 30050932501.

Almost surely, 2^{142321205112256} is an apocalyptic number.

142321205112256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142321205112256 is an abundant number, since it is smaller than the sum of its proper divisors (147730372541112).

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

142321205112256 is an equidigital number, since it uses as much as digits as its factorization.

142321205112256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60101860316 (or 60101860306 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 142321205112256 its reverse (652211502123241), we get a palindrome (794532707235497).

The spelling of 142321205112256 in words is "one hundred forty-two trillion, three hundred twenty-one billion, two hundred five million, one hundred twelve thousand, two hundred fifty-six".