20442132103511 has 8 divisors (see below), whose sum is σ = 20517219268224. Its totient is φ = 20367054211680.

The previous prime is 20442132103507. The next prime is 20442132103607. The reversal of 20442132103511 is 11530123124402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20442132103511 - 2² = 20442132103507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442132103111) 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, 2114426 + ... + 6734616.

It is an arithmetic number, because the mean of its divisors is an integer number (2564652408528).

Almost surely, 2^{20442132103511} is an apocalyptic number.

20442132103511 is a deficient number, since it is larger than the sum of its proper divisors (75087164713).

20442132103511 is a wasteful number, since it uses less digits than its factorization.

20442132103511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636441.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 20442132103511 its reverse (11530123124402), we get a palindrome (31972255227913).

The spelling of 20442132103511 in words is "twenty trillion, four hundred forty-two billion, one hundred thirty-two million, one hundred three thousand, five hundred eleven".