11013440031 has 24 divisors (see below), whose sum is σ = 17371472976. Its totient is φ = 6668288640.

The previous prime is 11013439999. The next prime is 11013440051. The reversal of 11013440031 is 13004431011.

It is not a de Polignac number, because 11013440031 - 2⁵ = 11013439999 is a prime.

It is a super-2 number, since 2×11013440031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11013439986 and 11013440013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013440051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48421 + ... + 156113.

It is an arithmetic number, because the mean of its divisors is an integer number (723811374).

Almost surely, 2^11013440031 is an apocalyptic number.

11013440031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11013440031 is a deficient number, since it is larger than the sum of its proper divisors (6358032945).

11013440031 is a wasteful number, since it uses less digits than its factorization.

11013440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108743 (or 108740 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11013440031 its reverse (13004431011), we get a palindrome (24017871042).

The spelling of 11013440031 in words is "eleven billion, thirteen million, four hundred forty thousand, thirty-one".