11200311231 has 32 divisors (see below), whose sum is σ = 15327055872. Its totient is φ = 7272545280.

The previous prime is 11200311223. The next prime is 11200311301. The reversal of 11200311231 is 13211300211.

It is a happy number.

It is not a de Polignac number, because 11200311231 - 2³ = 11200311223 is a prime.

It is a super-2 number, since 2×11200311231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11200311231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200311431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24190506 + ... + 24190968.

It is an arithmetic number, because the mean of its divisors is an integer number (478970496).

Almost surely, 2^11200311231 is an apocalyptic number.

11200311231 is a deficient number, since it is larger than the sum of its proper divisors (4126744641).

11200311231 is a wasteful number, since it uses less digits than its factorization.

11200311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11200311231 its reverse (13211300211), we get a palindrome (24411611442).

The spelling of 11200311231 in words is "eleven billion, two hundred million, three hundred eleven thousand, two hundred thirty-one".