11303133231 has 32 divisors (see below), whose sum is σ = 17635502080. Its totient is φ = 6377097600.

The previous prime is 11303133229. The next prime is 11303133239. The reversal of 11303133231 is 13233130311.

It is not a de Polignac number, because 11303133231 - 2¹ = 11303133229 is a prime.

It is a super-2 number, since 2×11303133231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11303133198 and 11303133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11303133239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223060 + ... + 269001.

It is an arithmetic number, because the mean of its divisors is an integer number (551109440).

Almost surely, 2^11303133231 is an apocalyptic number.

11303133231 is a deficient number, since it is larger than the sum of its proper divisors (6332368849).

11303133231 is a wasteful number, since it uses less digits than its factorization.

11303133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492127.

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

Adding to 11303133231 its reverse (13233130311), we get a palindrome (24536263542).

The spelling of 11303133231 in words is "eleven billion, three hundred three million, one hundred thirty-three thousand, two hundred thirty-one".