1312231201024 has 36 divisors (see below), whose sum is σ = 2619418141900. Its totient is φ = 656095150080.

The previous prime is 1312231201019. The next prime is 1312231201037. The reversal of 1312231201024 is 4201021322131.

It can be written as a sum of positive squares in 2 ways, for example, as 1232028961024 + 80202240000 = 1109968^2 + 283200^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312231200986 and 1312231201004.

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, 11321284 + ... + 11436604.

Almost surely, 2^{1312231201024} is an apocalyptic number.

It is an amenable number.

1312231201024 is a deficient number, since it is larger than the sum of its proper divisors (1307186940876).

1312231201024 is an equidigital number, since it uses as much as digits as its factorization.

1312231201024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159786 (or 159772 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1312231201024 its reverse (4201021322131), we get a palindrome (5513252523155).

The spelling of 1312231201024 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, two hundred one thousand, twenty-four".