20320001004 has 12 divisors (see below), whose sum is σ = 47413335704. Its totient is φ = 6773333664.

The previous prime is 20320000997. The next prime is 20320001011. The reversal of 20320001004 is 40010002302.

It is an interprime number because it is at equal distance from previous prime (20320000997) and next prime (20320001011).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20320001004² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1693333417 = 20320001004 / (2 + 0 + 3 + 2 + 0 + 0 + 0 + 1 + 0 + 0 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846666697 + ... + 846666720.

Almost surely, 2^20320001004 is an apocalyptic number.

It is an amenable number.

20320001004 is an abundant number, since it is smaller than the sum of its proper divisors (27093334700).

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

20320001004 is a wasteful number, since it uses less digits than its factorization.

20320001004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693333424 (or 1693333422 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20320001004 its reverse (40010002302), we get a palindrome (60330003306).

The spelling of 20320001004 in words is "twenty billion, three hundred twenty million, one thousand, four".