2231111313312 has 96 divisors (see below), whose sum is σ = 6693939592704. Its totient is φ = 637402694400.

The previous prime is 2231111313209. The next prime is 2231111313329. The reversal of 2231111313312 is 2133131111322.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×2231111313312³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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, 7577487 + ... + 7866417.

It is an arithmetic number, because the mean of its divisors is an integer number (69728537424).

Almost surely, 2^{2231111313312} is an apocalyptic number.

It is an amenable number.

2231111313312 is an abundant number, since it is smaller than the sum of its proper divisors (4462828279392).

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

2231111313312 is a wasteful number, since it uses less digits than its factorization.

2231111313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300442 (or 300434 counting only the distinct ones).

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

Adding to 2231111313312 its reverse (2133131111322), we get a palindrome (4364242424634).

The spelling of 2231111313312 in words is "two trillion, two hundred thirty-one billion, one hundred eleven million, three hundred thirteen thousand, three hundred twelve".