11311231330 has 32 divisors (see below), whose sum is σ = 24019430400. Its totient is φ = 3753034560.

The previous prime is 11311231301. The next prime is 11311231339. The reversal of 11311231330 is 3313211311.

It is a junction number, because it is equal to n+sod(n) for n = 11311231298 and 11311231307.

It is not an unprimeable number, because it can be changed into a prime (11311231339) 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, 2604105 + ... + 2608444.

It is an arithmetic number, because the mean of its divisors is an integer number (750607200).

Almost surely, 2^11311231330 is an apocalyptic number.

11311231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311231330 is an abundant number, since it is smaller than the sum of its proper divisors (12708199070).

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

11311231330 is a wasteful number, since it uses less digits than its factorization.

11311231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212594.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11311231330 its reverse (3313211311), we get a palindrome (14624442641).

The spelling of 11311231330 in words is "eleven billion, three hundred eleven million, two hundred thirty-one thousand, three hundred thirty".