20113234242 has 32 divisors (see below), whose sum is σ = 43228458432. Its totient is φ = 6215852544.

The previous prime is 20113234213. The next prime is 20113234289. The reversal of 20113234242 is 24243231102.

It is a happy number.

It is a super-2 number, since 2×20113234242² (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, 1464723 + ... + 1478390.

It is an arithmetic number, because the mean of its divisors is an integer number (1350889326).

Almost surely, 2^20113234242 is an apocalyptic number.

20113234242 is an abundant number, since it is smaller than the sum of its proper divisors (23115224190).

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

20113234242 is a wasteful number, since it uses less digits than its factorization.

20113234242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943202.

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

Adding to 20113234242 its reverse (24243231102), we get a palindrome (44356465344).

The spelling of 20113234242 in words is "twenty billion, one hundred thirteen million, two hundred thirty-four thousand, two hundred forty-two".