20442111234 has 16 divisors (see below), whose sum is σ = 40896969888. Its totient is φ = 6811912512.

The previous prime is 20442111203. The next prime is 20442111247. The reversal of 20442111234 is 43211124402.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510232 + ... + 548835.

It is an arithmetic number, because the mean of its divisors is an integer number (2556060618).

Almost surely, 2^20442111234 is an apocalyptic number.

20442111234 is an abundant number, since it is smaller than the sum of its proper divisors (20454858654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20442111234 is a wasteful number, since it uses less digits than its factorization.

20442111234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062289.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20442111234 its reverse (43211124402), we get a palindrome (63653235636).

The spelling of 20442111234 in words is "twenty billion, four hundred forty-two million, one hundred eleven thousand, two hundred thirty-four".