20103203211 has 32 divisors (see below), whose sum is σ = 33058959360. Its totient is φ = 10581681024.

The previous prime is 20103203117. The next prime is 20103203227. The reversal of 20103203211 is 11230230102.

It is not a de Polignac number, because 20103203211 - 2⁷ = 20103203083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20103203231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53901 + ... + 207633.

It is an arithmetic number, because the mean of its divisors is an integer number (1033092480).

Almost surely, 2^20103203211 is an apocalyptic number.

20103203211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20103203211 is a deficient number, since it is larger than the sum of its proper divisors (12955756149).

20103203211 is a wasteful number, since it uses less digits than its factorization.

20103203211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154235.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20103203211 its reverse (11230230102), we get a palindrome (31333433313).

The spelling of 20103203211 in words is "twenty billion, one hundred three million, two hundred three thousand, two hundred eleven".