1312123012232 has 32 divisors (see below), whose sum is σ = 2462807381400. Its totient is φ = 655374720000.

The previous prime is 1312123012231. The next prime is 1312123012241. The reversal of 1312123012232 is 2322103212131.

It can be written as a sum of positive squares in 4 ways, for example, as 1136087383876 + 176035628356 = 1065874^2 + 419566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312123012198 and 1312123012207.

It is not an unprimeable number, because it can be changed into a prime (1312123012231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34060982 + ... + 34099482.

Almost surely, 2^{1312123012232} is an apocalyptic number.

It is an amenable number.

1312123012232 is a deficient number, since it is larger than the sum of its proper divisors (1150684369168).

1312123012232 is a wasteful number, since it uses less digits than its factorization.

1312123012232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42857 (or 42853 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1312123012232 its reverse (2322103212131), we get a palindrome (3634226224363).

The spelling of 1312123012232 in words is "one trillion, three hundred twelve billion, one hundred twenty-three million, twelve thousand, two hundred thirty-two".