11311211310 has 64 divisors (see below), whose sum is σ = 31417804800. Its totient is φ = 2552689152.

The previous prime is 11311211299. The next prime is 11311211333. The reversal of 11311211310 is 1311211311.

It is a super-2 number, since 2×11311211310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11311211310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324315 + ... + 357494.

It is an arithmetic number, because the mean of its divisors is an integer number (490903200).

Almost surely, 2^11311211310 is an apocalyptic number.

11311211310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311211310 is an abundant number, since it is smaller than the sum of its proper divisors (20106593490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311211310 is a wasteful number, since it uses less digits than its factorization.

11311211310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681905.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11311211310 its reverse (1311211311), we get a palindrome (12622422621).

Subtracting from 11311211310 its reverse (1311211311), we obtain a palindrome (9999999999).

The spelling of 11311211310 in words is "eleven billion, three hundred eleven million, two hundred eleven thousand, three hundred ten".