1100031123311 has 16 divisors (see below), whose sum is σ = 1105129200000. Its totient is φ = 1094948942688.

The previous prime is 1100031123307. The next prime is 1100031123391. The reversal of 1100031123311 is 1133211300011.

It is a cyclic number.

It is not a de Polignac number, because 1100031123311 - 2² = 1100031123307 is a prime.

It is a super-3 number, since 3×1100031123311³ (a number of 37 digits) contains 333 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 1100031123311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100031123391) 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, 553613060 + ... + 553615046.

It is an arithmetic number, because the mean of its divisors is an integer number (69070575000).

Almost surely, 2^{1100031123311} is an apocalyptic number.

1100031123311 is a deficient number, since it is larger than the sum of its proper divisors (5098076689).

1100031123311 is a wasteful number, since it uses less digits than its factorization.

1100031123311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1100031123311 its reverse (1133211300011), we get a palindrome (2233242423322).

The spelling of 1100031123311 in words is "one trillion, one hundred billion, thirty-one million, one hundred twenty-three thousand, three hundred eleven".