20321100004 has 6 divisors (see below), whose sum is σ = 35561925014. Its totient is φ = 10160550000.

The previous prime is 20321099977. The next prime is 20321100029. The reversal of 20321100004 is 40000112302.

It can be written as a sum of positive squares in only one way, i.e., 20266369600 + 54730404 = 142360^2 + 7398^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540137497 + ... + 2540137504.

Almost surely, 2^20321100004 is an apocalyptic number.

It is an amenable number.

20321100004 is a deficient number, since it is larger than the sum of its proper divisors (15240825010).

20321100004 is a wasteful number, since it uses less digits than its factorization.

20321100004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080275005 (or 5080275003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20321100004 its reverse (40000112302), we get a palindrome (60321212306).

The spelling of 20321100004 in words is "twenty billion, three hundred twenty-one million, one hundred thousand, four".