11103031231231 has 8 divisors (see below), whose sum is σ = 11136481000704. Its totient is φ = 11069619239640.

The previous prime is 11103031231177. The next prime is 11103031231277. The reversal of 11103031231231 is 13213213030111.

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 11103031231231 - 2¹¹ = 11103031229183 is a prime.

It is a super-2 number, since 2×11103031231231² (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 (11103031231931) 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, 8855725 + ... + 10031446.

It is an arithmetic number, because the mean of its divisors is an integer number (1392060125088).

Almost surely, 2^{11103031231231} is an apocalyptic number.

11103031231231 is a deficient number, since it is larger than the sum of its proper divisors (33449769473).

11103031231231 is a wasteful number, since it uses less digits than its factorization.

11103031231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18888941.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11103031231231 its reverse (13213213030111), we get a palindrome (24316244261342).

The spelling of 11103031231231 in words is "eleven trillion, one hundred three billion, thirty-one million, two hundred thirty-one thousand, two hundred thirty-one".