11031530311 has 4 divisors (see below), whose sum is σ = 11032545352. Its totient is φ = 11030515272.

The previous prime is 11031530297. The next prime is 11031530347. The reversal of 11031530311 is 11303513011.

11031530311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11031530311 - 2⁷ = 11031530183 is a prime.

It is a super-2 number, since 2×11031530311² (a number of 21 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 (11031530351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491040 + ... + 513013.

It is an arithmetic number, because the mean of its divisors is an integer number (2758136338).

Almost surely, 2^11031530311 is an apocalyptic number.

11031530311 is a deficient number, since it is larger than the sum of its proper divisors (1015041).

11031530311 is a wasteful number, since it uses less digits than its factorization.

11031530311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015040.

The product of its (nonzero) digits is 135, while the sum is 19.

The spelling of 11031530311 in words is "eleven billion, thirty-one million, five hundred thirty thousand, three hundred eleven".