20130204004 has 6 divisors (see below), whose sum is σ = 35227857014. Its totient is φ = 10065102000.

The previous prime is 20130204001. The next prime is 20130204007. The reversal of 20130204004 is 40040203102.

It is an interprime number because it is at equal distance from previous prime (20130204001) and next prime (20130204007).

It can be written as a sum of positive squares in only one way, i.e., 10588821604 + 9541382400 = 102902^2 + 97680^2 .

It is a super-2 number, since 2×20130204004² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20130204001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2516275497 + ... + 2516275504.

Almost surely, 2^20130204004 is an apocalyptic number.

It is an amenable number.

20130204004 is a deficient number, since it is larger than the sum of its proper divisors (15097653010).

20130204004 is a wasteful number, since it uses less digits than its factorization.

20130204004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032551005 (or 5032551003 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20130204004 its reverse (40040203102), we get a palindrome (60170407106).

The spelling of 20130204004 in words is "twenty billion, one hundred thirty million, two hundred four thousand, four".