13103211 has 12 divisors (see below), whose sum is σ = 19204136. Its totient is φ = 7941120.

The previous prime is 13103201. The next prime is 13103219. The reversal of 13103211 is 11230131.

13103211 = T₁₅₃₈ + T₁₅₃₉ + ... + T₁₅₄₈.

It is not a de Polignac number, because 13103211 - 2⁶ = 13103147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13103219) 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, 17686 + ... + 18411.

Almost surely, 2^13103211 is an apocalyptic number.

13103211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13103211 is a deficient number, since it is larger than the sum of its proper divisors (6100925).

13103211 is a wasteful number, since it uses less digits than its factorization.

13103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36122 (or 36111 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 13103211 is about 3619.8357697553. The cubic root of 13103211 is about 235.7540948637.

Adding to 13103211 its reverse (11230131), we get a palindrome (24333342).

Subtracting from 13103211 its reverse (11230131), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 13103211 in words is "thirteen million, one hundred three thousand, two hundred eleven".