342123021231220 has 24 divisors (see below), whose sum is σ = 718460261090208. Its totient is φ = 136848843444000.

The previous prime is 342123021231209. The next prime is 342123021231221. The reversal of 342123021231220 is 22132120321243.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342123021231221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15066306 + ... + 30186745.

It is an arithmetic number, because the mean of its divisors is an integer number (29935844212092).

Almost surely, 2^{342123021231220} is an apocalyptic number.

It is an amenable number.

342123021231220 is an abundant number, since it is smaller than the sum of its proper divisors (376337239858988).

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

342123021231220 is a wasteful number, since it uses less digits than its factorization.

342123021231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45631071 (or 45631069 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 342123021231220 its reverse (22132120321243), we get a palindrome (364255141552463).

The spelling of 342123021231220 in words is "three hundred forty-two trillion, one hundred twenty-three billion, twenty-one million, two hundred thirty-one thousand, two hundred twenty".