20004310521106 has 4 divisors (see below), whose sum is σ = 30006465781662. Its totient is φ = 10002155260552.

The previous prime is 20004310521077. The next prime is 20004310521137. The reversal of 20004310521106 is 60112501340002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19206227365081 + 798083156025 = 4382491^2 + 893355^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001077630275 + ... + 5001077630278.

Almost surely, 2^{20004310521106} is an apocalyptic number.

20004310521106 is a deficient number, since it is larger than the sum of its proper divisors (10002155260556).

20004310521106 is a wasteful number, since it uses less digits than its factorization.

20004310521106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10002155260555.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20004310521106 its reverse (60112501340002), we get a palindrome (80116811861108).

The spelling of 20004310521106 in words is "twenty trillion, four billion, three hundred ten million, five hundred twenty-one thousand, one hundred six".