20103110000321 has 16 divisors (see below), whose sum is σ = 20176885648080. Its totient is φ = 20029485864960.

The previous prime is 20103110000297. The next prime is 20103110000333. The reversal of 20103110000321 is 12300001130102.

It can be written as a sum of positive squares in 8 ways, for example, as 2558195518096 + 17544914482225 = 1599436^2 + 4188665^2 .

It is a cyclic number.

It is not a de Polignac number, because 20103110000321 - 2⁴² = 15705063489217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20103110000296 and 20103110000305.

It is not an unprimeable number, because it can be changed into a prime (20103110000521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2206945715 + ... + 2206954823.

It is an arithmetic number, because the mean of its divisors is an integer number (1261055353005).

Almost surely, 2^{20103110000321} is an apocalyptic number.

It is an amenable number.

20103110000321 is a deficient number, since it is larger than the sum of its proper divisors (73775647759).

20103110000321 is an equidigital number, since it uses as much as digits as its factorization.

20103110000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16564.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20103110000321 its reverse (12300001130102), we get a palindrome (32403111130423).

The spelling of 20103110000321 in words is "twenty trillion, one hundred three billion, one hundred ten million, three hundred twenty-one", and thus it is an aban number.