2311211201320 has 64 divisors (see below), whose sum is σ = 5953003660800. Its totient is φ = 791096716800.

The previous prime is 2311211201303. The next prime is 2311211201329. The reversal of 2311211201320 is 231021121132.

It is not an unprimeable number, because it can be changed into a prime (2311211201329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6698880 + ... + 7035439.

It is an arithmetic number, because the mean of its divisors is an integer number (93015682200).

Almost surely, 2^{2311211201320} is an apocalyptic number.

2311211201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311211201320 is an abundant number, since it is smaller than the sum of its proper divisors (3641792459480).

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

2311211201320 is a wasteful number, since it uses less digits than its factorization.

2311211201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13734938 (or 13734934 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2311211201320 its reverse (231021121132), we get a palindrome (2542232322452).

The spelling of 2311211201320 in words is "two trillion, three hundred eleven billion, two hundred eleven million, two hundred one thousand, three hundred twenty".