142234423043220 has 36 divisors (see below), whose sum is σ = 431444416564980. Its totient is φ = 37929179478144.

The previous prime is 142234423043201. The next prime is 142234423043257. The reversal of 142234423043220 is 22340324432241.

142234423043220 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 3 + 4 + 423 + 0 + 4 + 3 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16629415214724 + 125605007828496 = 4077918^2 + 11207364^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395095619385 + ... + 395095619744.

It is an arithmetic number, because the mean of its divisors is an integer number (11984567126805).

Almost surely, 2^{142234423043220} is an apocalyptic number.

142234423043220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142234423043220 is an abundant number, since it is smaller than the sum of its proper divisors (289209993521760).

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

142234423043220 is a wasteful number, since it uses less digits than its factorization.

142234423043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790191239144 (or 790191239139 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 142234423043220 its reverse (22340324432241), we get a palindrome (164574747475461).

The spelling of 142234423043220 in words is "one hundred forty-two trillion, two hundred thirty-four billion, four hundred twenty-three million, forty-three thousand, two hundred twenty".