11231311003103 has 4 divisors (see below), whose sum is σ = 11398942510680. Its totient is φ = 11063679495528.

The previous prime is 11231311003021. The next prime is 11231311003127. The reversal of 11231311003103 is 30130011313211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11231311003103 - 2³⁸ = 10956433096159 is a prime.

It is a super-2 number, since 2×11231311003103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231311003603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83815753688 + ... + 83815753821.

It is an arithmetic number, because the mean of its divisors is an integer number (2849735627670).

Almost surely, 2^{11231311003103} is an apocalyptic number.

11231311003103 is a deficient number, since it is larger than the sum of its proper divisors (167631507577).

11231311003103 is an equidigital number, since it uses as much as digits as its factorization.

11231311003103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167631507576.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 11231311003103 its reverse (30130011313211), we get a palindrome (41361322316314).

The spelling of 11231311003103 in words is "eleven trillion, two hundred thirty-one billion, three hundred eleven million, three thousand, one hundred three".