21131142013004 has 6 divisors (see below), whose sum is σ = 36979498522764. Its totient is φ = 10565571006500.

The previous prime is 21131142013001. The next prime is 21131142013013. The reversal of 21131142013004 is 40031024113112.

It is not an unprimeable number, because it can be changed into a prime (21131142013001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2641392751622 + ... + 2641392751629.

It is an arithmetic number, because the mean of its divisors is an integer number (6163249753794).

Almost surely, 2^{21131142013004} is an apocalyptic number.

It is an amenable number.

21131142013004 is a deficient number, since it is larger than the sum of its proper divisors (15848356509760).

21131142013004 is a wasteful number, since it uses less digits than its factorization.

21131142013004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282785503255 (or 5282785503253 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21131142013004 its reverse (40031024113112), we get a palindrome (61162166126116).

The spelling of 21131142013004 in words is "twenty-one trillion, one hundred thirty-one billion, one hundred forty-two million, thirteen thousand, four".