2123001323312 has 20 divisors (see below), whose sum is σ = 4118636323440. Its totient is φ = 1060127433408.

The previous prime is 2123001323309. The next prime is 2123001323323. The reversal of 2123001323312 is 2133231003212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85814012 + ... + 85838747.

It is an arithmetic number, because the mean of its divisors is an integer number (205931816172).

Almost surely, 2^{2123001323312} is an apocalyptic number.

It is an amenable number.

2123001323312 is a deficient number, since it is larger than the sum of its proper divisors (1995635000128).

2123001323312 is a wasteful number, since it uses less digits than its factorization.

2123001323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171653540 (or 171653534 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2123001323312 its reverse (2133231003212), we get a palindrome (4256232326524).

The spelling of 2123001323312 in words is "two trillion, one hundred twenty-three billion, one million, three hundred twenty-three thousand, three hundred twelve".