11031133231 has 8 divisors (see below), whose sum is σ = 11163459104. Its totient is φ = 10899187200.

The previous prime is 11031133207. The next prime is 11031133301. The reversal of 11031133231 is 13233113011.

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

It is a cyclic number.

It is not a de Polignac number, because 11031133231 - 2⁷ = 11031133103 is a prime.

It is a super-2 number, since 2×11031133231² (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 = 11031133199 and 11031133208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031133831) 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, 36315 + ... + 152908.

It is an arithmetic number, because the mean of its divisors is an integer number (1395432388).

Almost surely, 2^11031133231 is an apocalyptic number.

11031133231 is a deficient number, since it is larger than the sum of its proper divisors (132325873).

11031133231 is an equidigital number, since it uses as much as digits as its factorization.

11031133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189921.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11031133231 its reverse (13233113011), we get a palindrome (24264246242).

The spelling of 11031133231 in words is "eleven billion, thirty-one million, one hundred thirty-three thousand, two hundred thirty-one".