20112332340021 has 8 divisors (see below), whose sum is σ = 26816525876544. Its totient is φ = 13408180181760.

The previous prime is 20112332340019. The next prime is 20112332340103. The reversal of 20112332340021 is 12004323321102.

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

It is not a de Polignac number, because 20112332340021 - 2¹ = 20112332340019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112332339973 and 20112332340000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112332340421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9192081 + ... + 11167766.

It is an arithmetic number, because the mean of its divisors is an integer number (3352065734568).

Almost surely, 2^{20112332340021} is an apocalyptic number.

It is an amenable number.

20112332340021 is a deficient number, since it is larger than the sum of its proper divisors (6704193536523).

20112332340021 is a wasteful number, since it uses less digits than its factorization.

20112332340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20689131.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20112332340021 its reverse (12004323321102), we get a palindrome (32116655661123).

The spelling of 20112332340021 in words is "twenty trillion, one hundred twelve billion, three hundred thirty-two million, three hundred forty thousand, twenty-one".