11203231312311 has 16 divisors (see below), whose sum is σ = 15365055129600. Its totient is φ = 7256932966080.

The previous prime is 11203231312309. The next prime is 11203231312369. The reversal of 11203231312311 is 11321313230211.

It is not a de Polignac number, because 11203231312311 - 2¹ = 11203231312309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203231312391) 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, 227322886 + ... + 227372163.

It is an arithmetic number, because the mean of its divisors is an integer number (960315945600).

Almost surely, 2^{11203231312311} is an apocalyptic number.

11203231312311 is a deficient number, since it is larger than the sum of its proper divisors (4161823817289).

11203231312311 is a wasteful number, since it uses less digits than its factorization.

11203231312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454695286.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11203231312311 its reverse (11321313230211), we get a palindrome (22524544542522).

The spelling of 11203231312311 in words is "eleven trillion, two hundred three billion, two hundred thirty-one million, three hundred twelve thousand, three hundred eleven".