13101231 has 16 divisors (see below), whose sum is σ = 20522880. Its totient is φ = 7329120.

The previous prime is 13101223. The next prime is 13101233. The reversal of 13101231 is 13210131.

It is not a de Polignac number, because 13101231 - 2³ = 13101223 is a prime.

It is a super-2 number, since 2×13101231² = 343284507430722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101233) 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, 14841 + ... + 15698.

It is an arithmetic number, because the mean of its divisors is an integer number (1282680).

Almost surely, 2^13101231 is an apocalyptic number.

13101231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13101231 is a deficient number, since it is larger than the sum of its proper divisors (7421649).

13101231 is a wasteful number, since it uses less digits than its factorization.

13101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30566.

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

The square root of 13101231 is about 3619.5622663521. The cubic root of 13101231 is about 235.7422194889.

Adding to 13101231 its reverse (13210131), we get a palindrome (26311362).

Subtracting 13101231 from its reverse (13210131), we obtain a square (108900 = 330²).

The spelling of 13101231 in words is "thirteen million, one hundred one thousand, two hundred thirty-one".