11031333231 has 16 divisors (see below), whose sum is σ = 14792000256. Its totient is φ = 7312482816.

The previous prime is 11031333197. The next prime is 11031333263. The reversal of 11031333231 is 13233313011.

It is not a de Polignac number, because 11031333231 - 2¹⁵ = 11031300463 is a prime.

It is a super-2 number, since 2×11031333231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11031333198 and 11031333207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031313231) 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, 1677556 + ... + 1684118.

It is an arithmetic number, because the mean of its divisors is an integer number (924500016).

Almost surely, 2^11031333231 is an apocalyptic number.

11031333231 is a deficient number, since it is larger than the sum of its proper divisors (3760667025).

11031333231 is a wasteful number, since it uses less digits than its factorization.

11031333231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9662.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 11031333231 its reverse (13233313011), we get a palindrome (24264646242).

The spelling of 11031333231 in words is "eleven billion, thirty-one million, three hundred thirty-three thousand, two hundred thirty-one".