13531103011 has 12 divisors (see below), whose sum is σ = 14239069200. Its totient is φ = 12842985008.

The previous prime is 13531103009. The next prime is 13531103039. The reversal of 13531103011 is 11030113531.

It is not a de Polignac number, because 13531103011 - 2¹ = 13531103009 is a prime.

It is a super-2 number, since 2×13531103011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13531103011.

It is not an unprimeable number, because it can be changed into a prime (13531103041) 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, 33930 + ... + 167968.

It is an arithmetic number, because the mean of its divisors is an integer number (1186589100).

Almost surely, 2^13531103011 is an apocalyptic number.

13531103011 is a deficient number, since it is larger than the sum of its proper divisors (707966189).

13531103011 is an equidigital number, since it uses as much as digits as its factorization.

13531103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134186 (or 134127 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 19.

Adding to 13531103011 its reverse (11030113531), we get a palindrome (24561216542).

The spelling of 13531103011 in words is "thirteen billion, five hundred thirty-one million, one hundred three thousand, eleven".