11113203031 has 8 divisors (see below), whose sum is σ = 12705677600. Its totient is φ = 9521947008.

The previous prime is 11113202981. The next prime is 11113203047. The reversal of 11113203031 is 13030231111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11113203031 - 2⁹ = 11113202519 is a prime.

It is a super-2 number, since 2×11113203031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11113202996 and 11113203014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113200031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285006 + ... + 321643.

It is an arithmetic number, because the mean of its divisors is an integer number (1588209700).

Almost surely, 2^11113203031 is an apocalyptic number.

11113203031 is a deficient number, since it is larger than the sum of its proper divisors (1592474569).

11113203031 is an equidigital number, since it uses as much as digits as its factorization.

11113203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609273.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11113203031 its reverse (13030231111), we get a palindrome (24143434142).

The spelling of 11113203031 in words is "eleven billion, one hundred thirteen million, two hundred three thousand, thirty-one".