20011132342 has 4 divisors (see below), whose sum is σ = 30016698516. Its totient is φ = 10005566170.

The previous prime is 20011132333. The next prime is 20011132343. The reversal of 20011132342 is 24323111002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011132343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002783084 + ... + 5002783087.

It is an arithmetic number, because the mean of its divisors is an integer number (7504174629).

Almost surely, 2^20011132342 is an apocalyptic number.

20011132342 is a deficient number, since it is larger than the sum of its proper divisors (10005566174).

20011132342 is a wasteful number, since it uses less digits than its factorization.

20011132342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005566173.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20011132342 its reverse (24323111002), we get a palindrome (44334243344).

The spelling of 20011132342 in words is "twenty billion, eleven million, one hundred thirty-two thousand, three hundred forty-two".