2311223134512 has 40 divisors (see below), whose sum is σ = 6025436472880. Its totient is φ = 763339749120.

The previous prime is 2311223134433. The next prime is 2311223134513. The reversal of 2311223134512 is 2154313221132.

It is a self number, because there is not a number n which added to its sum of digits gives 2311223134512.

It is not an unprimeable number, because it can be changed into a prime (2311223134513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220868539 + ... + 220879002.

It is an arithmetic number, because the mean of its divisors is an integer number (150635911822).

Almost surely, 2^{2311223134512} is an apocalyptic number.

It is an amenable number.

2311223134512 is an abundant number, since it is smaller than the sum of its proper divisors (3714213338368).

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

2311223134512 is a wasteful number, since it uses less digits than its factorization.

2311223134512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441747661 (or 441747655 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

Adding to 2311223134512 its reverse (2154313221132), we get a palindrome (4465536355644).

The spelling of 2311223134512 in words is "two trillion, three hundred eleven billion, two hundred twenty-three million, one hundred thirty-four thousand, five hundred twelve".