11231302311 has 12 divisors (see below), whose sum is σ = 16600271688. Its totient is φ = 7313405904.

The previous prime is 11231302309. The next prime is 11231302319. The reversal of 11231302311 is 11320313211.

It is not a de Polignac number, because 11231302311 - 2¹ = 11231302309 is a prime.

It is a super-2 number, since 2×11231302311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231302319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14510340 + ... + 14511113.

It is an arithmetic number, because the mean of its divisors is an integer number (1383355974).

Almost surely, 2^11231302311 is an apocalyptic number.

11231302311 is a deficient number, since it is larger than the sum of its proper divisors (5368969377).

11231302311 is a wasteful number, since it uses less digits than its factorization.

11231302311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29021502 (or 29021499 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11231302311 its reverse (11320313211), we get a palindrome (22551615522).

The spelling of 11231302311 in words is "eleven billion, two hundred thirty-one million, three hundred two thousand, three hundred eleven".