20531006611342 has 8 divisors (see below), whose sum is σ = 31230263578032. Its totient is φ = 10120918752000.

The previous prime is 20531006611331. The next prime is 20531006611343. The reversal of 20531006611342 is 24311660013502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20531006611298 and 20531006611307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20531006611343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72292276659 + ... + 72292276942.

It is an arithmetic number, because the mean of its divisors is an integer number (3903782947254).

Almost surely, 2^{20531006611342} is an apocalyptic number.

20531006611342 is a deficient number, since it is larger than the sum of its proper divisors (10699256966690).

20531006611342 is a wasteful number, since it uses less digits than its factorization.

20531006611342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144584553674.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 20531006611342 its reverse (24311660013502), we get a palindrome (44842666624844).

The spelling of 20531006611342 in words is "twenty trillion, five hundred thirty-one billion, six million, six hundred eleven thousand, three hundred forty-two".