11031101031 has 4 divisors (see below), whose sum is σ = 14708134712. Its totient is φ = 7354067352.

The previous prime is 11031100987. The next prime is 11031101057. The reversal of 11031101031 is 13010113011.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11031101031 - 2¹⁵ = 11031068263 is a prime.

It is a super-2 number, since 2×11031101031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031100998 and 11031101016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031101071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838516836 + ... + 1838516841.

It is an arithmetic number, because the mean of its divisors is an integer number (3677033678).

Almost surely, 2^11031101031 is an apocalyptic number.

11031101031 is a deficient number, since it is larger than the sum of its proper divisors (3677033681).

11031101031 is an equidigital number, since it uses as much as digits as its factorization.

11031101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677033680.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 11031101031 its reverse (13010113011), we get a palindrome (24041214042).

The spelling of 11031101031 in words is "eleven billion, thirty-one million, one hundred one thousand, thirty-one".