20110330420442 has 4 divisors (see below), whose sum is σ = 30165495630666. Its totient is φ = 10055165210220.

The previous prime is 20110330420417. The next prime is 20110330420447. The reversal of 20110330420442 is 24402403301102.

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

It can be written as a sum of positive squares in only one way, i.e., 19850241640321 + 260088780121 = 4455361^2 + 509989^2 .

It is not an unprimeable number, because it can be changed into a prime (20110330420447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027582605109 + ... + 5027582605112.

Almost surely, 2^{20110330420442} is an apocalyptic number.

20110330420442 is a deficient number, since it is larger than the sum of its proper divisors (10055165210224).

20110330420442 is a wasteful number, since it uses less digits than its factorization.

20110330420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055165210223.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20110330420442 its reverse (24402403301102), we get a palindrome (44512733721544).

The spelling of 20110330420442 in words is "twenty trillion, one hundred ten billion, three hundred thirty million, four hundred twenty thousand, four hundred forty-two".