11013335231 has 4 divisors (see below), whose sum is σ = 11070996864. Its totient is φ = 10955673600.

The previous prime is 11013335197. The next prime is 11013335239. The reversal of 11013335231 is 13253331011.

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 11013335231 - 2⁶ = 11013335167 is a prime.

It is a super-2 number, since 2×11013335231² (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 = 11013335197 and 11013335206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013335239) 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, 28830530 + ... + 28830911.

It is an arithmetic number, because the mean of its divisors is an integer number (2767749216).

Almost surely, 2^11013335231 is an apocalyptic number.

11013335231 is a deficient number, since it is larger than the sum of its proper divisors (57661633).

11013335231 is an equidigital number, since it uses as much as digits as its factorization.

11013335231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57661632.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 11013335231 its reverse (13253331011), we get a palindrome (24266666242).

The spelling of 11013335231 in words is "eleven billion, thirteen million, three hundred thirty-five thousand, two hundred thirty-one".