1111131231303 has 16 divisors (see below), whose sum is σ = 1521579693440. Its totient is φ = 720719267616.

The previous prime is 1111131231257. The next prime is 1111131231347. The reversal of 1111131231303 is 3031321311111.

It is a de Polignac number, because none of the positive numbers 2^k-1111131231303 is a prime.

It is a super-2 number, since 2×1111131231303² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111131231303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111131231383) 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, 9834708 + ... + 9947046.

It is an arithmetic number, because the mean of its divisors is an integer number (95098730840).

Almost surely, 2^{1111131231303} is an apocalyptic number.

1111131231303 is a deficient number, since it is larger than the sum of its proper divisors (410448462137).

1111131231303 is a wasteful number, since it uses less digits than its factorization.

1111131231303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201486.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1111131231303 its reverse (3031321311111), we get a palindrome (4142452542414).

The spelling of 1111131231303 in words is "one trillion, one hundred eleven billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred three".