20011334442 has 32 divisors (see below), whose sum is σ = 43954142400. Its totient is φ = 6023339520.

The previous prime is 20011334417. The next prime is 20011334461. The reversal of 20011334442 is 24443311002.

It is a super-2 number, since 2×20011334442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007623 + ... + 1027290.

It is an arithmetic number, because the mean of its divisors is an integer number (1373566950).

Almost surely, 2^20011334442 is an apocalyptic number.

20011334442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20011334442 is an abundant number, since it is smaller than the sum of its proper divisors (23942807958).

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

20011334442 is a wasteful number, since it uses less digits than its factorization.

20011334442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035078.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20011334442 its reverse (24443311002), we get a palindrome (44454645444).

It can be divided in two parts, 20011 and 334442, that added together give a palindrome (354453).

The spelling of 20011334442 in words is "twenty billion, eleven million, three hundred thirty-four thousand, four hundred forty-two".