20103211011 has 16 divisors (see below), whose sum is σ = 28933148160. Its totient is φ = 12342492960.

The previous prime is 20103210983. The next prime is 20103211031. The reversal of 20103211011 is 11011230102.

It is not a de Polignac number, because 20103211011 - 2⁶ = 20103210947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20103211031) 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, 581181 + ... + 614798.

It is an arithmetic number, because the mean of its divisors is an integer number (1808321760).

Almost surely, 2^20103211011 is an apocalyptic number.

20103211011 is a deficient number, since it is larger than the sum of its proper divisors (8829937149).

20103211011 is a wasteful number, since it uses less digits than its factorization.

20103211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196426.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20103211011 its reverse (11011230102), we get a palindrome (31114441113).

The spelling of 20103211011 in words is "twenty billion, one hundred three million, two hundred eleven thousand, eleven".