11113011031 has 16 divisors (see below), whose sum is σ = 11473990528. Its totient is φ = 10757124000.

The previous prime is 11113010999. The next prime is 11113011047. The reversal of 11113011031 is 13011031111.

It is a cyclic number.

It is not a de Polignac number, because 11113011031 - 2⁵ = 11113010999 is a prime.

It is a super-2 number, since 2×11113011031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113011331) 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, 2387056 + ... + 2391706.

It is an arithmetic number, because the mean of its divisors is an integer number (717124408).

Almost surely, 2^11113011031 is an apocalyptic number.

11113011031 is a deficient number, since it is larger than the sum of its proper divisors (360979497).

11113011031 is a wasteful number, since it uses less digits than its factorization.

11113011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 11113011031 its reverse (13011031111), we get a palindrome (24124042142).

It can be divided in two parts, 111 and 13011031, that multiplied together give a palindrome (1444224441).

The spelling of 11113011031 in words is "eleven billion, one hundred thirteen million, eleven thousand, thirty-one".