20042113236 has 24 divisors (see below), whose sum is σ = 46816516320. Its totient is φ = 6673335072.

The previous prime is 20042113219. The next prime is 20042113243. The reversal of 20042113236 is 63231124002.

It is a congruent 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, 909831 + ... + 931598.

It is an arithmetic number, because the mean of its divisors is an integer number (1950688180).

Almost surely, 2^20042113236 is an apocalyptic number.

It is an amenable number.

20042113236 is an abundant number, since it is smaller than the sum of its proper divisors (26774403084).

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

20042113236 is a wasteful number, since it uses less digits than its factorization.

20042113236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842343 (or 1842341 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20042113236 its reverse (63231124002), we get a palindrome (83273237238).

The spelling of 20042113236 in words is "twenty billion, forty-two million, one hundred thirteen thousand, two hundred thirty-six".