142231422423220 has 24 divisors (see below), whose sum is σ = 321661832250024. Its totient is φ = 52516217510016.

The previous prime is 142231422423203. The next prime is 142231422423239. The reversal of 142231422423220 is 22324224132241.

It can be written as a sum of positive squares in 4 ways, for example, as 168003253924 + 142063419169296 = 409882^2 + 11919036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273521965939 + ... + 273521966458.

It is an arithmetic number, because the mean of its divisors is an integer number (13402576343751).

Almost surely, 2^{142231422423220} is an apocalyptic number.

142231422423220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142231422423220 is an abundant number, since it is smaller than the sum of its proper divisors (179430409826804).

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

142231422423220 is a wasteful number, since it uses less digits than its factorization.

142231422423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547043932419 (or 547043932417 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 142231422423220 its reverse (22324224132241), we get a palindrome (164555646555461).

The spelling of 142231422423220 in words is "one hundred forty-two trillion, two hundred thirty-one billion, four hundred twenty-two million, four hundred twenty-three thousand, two hundred twenty".