20103320111 has 12 divisors (see below), whose sum is σ = 23413415760. Its totient is φ = 17210844000.

The previous prime is 20103320099. The next prime is 20103320117. The reversal of 20103320111 is 11102330102.

It is not a de Polignac number, because 20103320111 - 2⁶ = 20103320047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103320117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203390 + ... + 285611.

It is an arithmetic number, because the mean of its divisors is an integer number (1951117980).

Almost surely, 2^20103320111 is an apocalyptic number.

20103320111 is a deficient number, since it is larger than the sum of its proper divisors (3310095649).

20103320111 is an equidigital number, since it uses as much as digits as its factorization.

20103320111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489854 (or 489847 counting only the distinct ones).

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

Adding to 20103320111 its reverse (11102330102), we get a palindrome (31205650213).

Subtracting from 20103320111 its reverse (11102330102), we obtain a palindrome (9000990009).

The spelling of 20103320111 in words is "twenty billion, one hundred three million, three hundred twenty thousand, one hundred eleven".