20113131134004 has 48 divisors (see below), whose sum is σ = 48973385989248. Its totient is φ = 6412583282688.

The previous prime is 20113131134003. The next prime is 20113131134077. The reversal of 20113131134004 is 40043113131102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113131134003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4266564 + ... + 7643940.

It is an arithmetic number, because the mean of its divisors is an integer number (1020278874776).

Almost surely, 2^{20113131134004} is an apocalyptic number.

It is an amenable number.

20113131134004 is an abundant number, since it is smaller than the sum of its proper divisors (28860254855244).

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

20113131134004 is a wasteful number, since it uses less digits than its factorization.

20113131134004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398984 (or 3398982 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 20113131134004 its reverse (40043113131102), we get a palindrome (60156244265106).

The spelling of 20113131134004 in words is "twenty trillion, one hundred thirteen billion, one hundred thirty-one million, one hundred thirty-four thousand, four".