20212043232342 has 128 divisors (see below), whose sum is σ = 45087739200000. Its totient is φ = 6001365012480.

The previous prime is 20212043232331. The next prime is 20212043232389. The reversal of 20212043232342 is 24323234021202.

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, 140008134 + ... + 140152422.

It is an arithmetic number, because the mean of its divisors is an integer number (352247962500).

Almost surely, 2^{20212043232342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212043232342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22543869600000).

20212043232342 is an abundant number, since it is smaller than the sum of its proper divisors (24875695967658).

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

20212043232342 is a wasteful number, since it uses less digits than its factorization.

20212043232342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144926.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20212043232342 its reverse (24323234021202), we get a palindrome (44535277253544).

The spelling of 20212043232342 in words is "twenty trillion, two hundred twelve billion, forty-three million, two hundred thirty-two thousand, three hundred forty-two".