11033033231 has 8 divisors (see below), whose sum is σ = 12559342464. Its totient is φ = 9593941720.

The previous prime is 11033033191. The next prime is 11033033237. The reversal of 11033033231 is 13233033011.

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

It is a de Polignac number, because none of the positive numbers 2^k-11033033231 is a prime.

It is a super-2 number, since 2×11033033231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033033237) 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, 21804161 + ... + 21804666.

It is an arithmetic number, because the mean of its divisors is an integer number (1569917808).

Almost surely, 2^11033033231 is an apocalyptic number.

11033033231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11033033231 is a deficient number, since it is larger than the sum of its proper divisors (1526309233).

11033033231 is a wasteful number, since it uses less digits than its factorization.

11033033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43608861.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 11033033231 its reverse (13233033011), we get a palindrome (24266066242).

The spelling of 11033033231 in words is "eleven billion, thirty-three million, thirty-three thousand, two hundred thirty-one".