11031011311 has 8 divisors (see below), whose sum is σ = 11255489424. Its totient is φ = 10807941120.

The previous prime is 11031011281. The next prime is 11031011353. The reversal of 11031011311 is 11311013011.

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 11031011311 - 2²¹ = 11028914159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031011291 and 11031011300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031011371) 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, 336145 + ... + 367498.

It is an arithmetic number, because the mean of its divisors is an integer number (1406936178).

Almost surely, 2^11031011311 is an apocalyptic number.

11031011311 is a deficient number, since it is larger than the sum of its proper divisors (224478113).

11031011311 is an equidigital number, since it uses as much as digits as its factorization.

11031011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703961.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 11031011311 its reverse (11311013011), we get a palindrome (22342024322).

The spelling of 11031011311 in words is "eleven billion, thirty-one million, eleven thousand, three hundred eleven".