11013003031 has 4 divisors (see below), whose sum is σ = 11019807000. Its totient is φ = 11006199064.

The previous prime is 11013002999. The next prime is 11013003059. The reversal of 11013003031 is 13030031011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11013003031 - 2⁵ = 11013002999 is a prime.

It is a super-2 number, since 2×11013003031² (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 (11013003091) 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, 3399556 + ... + 3402793.

It is an arithmetic number, because the mean of its divisors is an integer number (2754951750).

Almost surely, 2^11013003031 is an apocalyptic number.

11013003031 is a deficient number, since it is larger than the sum of its proper divisors (6803969).

11013003031 is an equidigital number, since it uses as much as digits as its factorization.

11013003031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803968.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 11013003031 its reverse (13030031011), we get a palindrome (24043034042).

The spelling of 11013003031 in words is "eleven billion, thirteen million, three thousand, thirty-one".