13831011 has 12 divisors (see below), whose sum is σ = 20277192. Its totient is φ = 9082656.

The previous prime is 13831009. The next prime is 13831043. The reversal of 13831011 is 11013831.

It is a happy number.

13831011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13831011 - 2¹ = 13831009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13832011) 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, 10866 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (1689766).

Almost surely, 2^13831011 is an apocalyptic number.

13831011 is a deficient number, since it is larger than the sum of its proper divisors (6446181).

13831011 is a wasteful number, since it uses less digits than its factorization.

13831011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23010 (or 23007 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 13831011 is about 3719.0067222311. The cubic root of 13831011 is about 240.0405660596.

Adding to 13831011 its reverse (11013831), we get a palindrome (24844842).

The spelling of 13831011 in words is "thirteen million, eight hundred thirty-one thousand, eleven".