20131433121004 has 24 divisors (see below), whose sum is σ = 35316064007168. Its totient is φ = 10041141393360.

The previous prime is 20131433121001. The next prime is 20131433121011. The reversal of 20131433121004 is 40012133413102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131433121004.

It is not an unprimeable number, because it can be changed into a prime (20131433121001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5036749 + ... + 8101339.

Almost surely, 2^{20131433121004} is an apocalyptic number.

It is an amenable number.

20131433121004 is a deficient number, since it is larger than the sum of its proper divisors (15184630886164).

20131433121004 is a wasteful number, since it uses less digits than its factorization.

20131433121004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068605 (or 3068603 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20131433121004 its reverse (40012133413102), we get a palindrome (60143566534106).

The spelling of 20131433121004 in words is "twenty trillion, one hundred thirty-one billion, four hundred thirty-three million, one hundred twenty-one thousand, four".