20411144242 has 16 divisors (see below), whose sum is σ = 32471618112. Its totient is φ = 9601819920.

The previous prime is 20411144233. The next prime is 20411144251. The reversal of 20411144242 is 24244111402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20411144233) and next prime (20411144251).

It is a super-2 number, since 2×20411144242² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3634248 + ... + 3639859.

It is an arithmetic number, because the mean of its divisors is an integer number (2029476132).

Almost surely, 2^20411144242 is an apocalyptic number.

20411144242 is a deficient number, since it is larger than the sum of its proper divisors (12060473870).

20411144242 is a wasteful number, since it uses less digits than its factorization.

20411144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274193.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 20411144242 its reverse (24244111402), we get a palindrome (44655255644).

The spelling of 20411144242 in words is "twenty billion, four hundred eleven million, one hundred forty-four thousand, two hundred forty-two".