20010012004 has 12 divisors (see below), whose sum is σ = 35021037744. Its totient is φ = 10004001224.

The previous prime is 20010011999. The next prime is 20010012007. The reversal of 20010012004 is 40021001002.

It is not an unprimeable number, because it can be changed into a prime (20010012007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205462 + ... + 286765.

It is an arithmetic number, because the mean of its divisors is an integer number (2918419812).

Almost surely, 2^20010012004 is an apocalyptic number.

It is an amenable number.

20010012004 is a deficient number, since it is larger than the sum of its proper divisors (15011025740).

20010012004 is a wasteful number, since it uses less digits than its factorization.

20010012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502394 (or 502392 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20010012004 its reverse (40021001002), we get a palindrome (60031013006).

The spelling of 20010012004 in words is "twenty billion, ten million, twelve thousand, four".