1312022120343 has 16 divisors (see below), whose sum is σ = 1908415151616. Its totient is φ = 795156863040.

The previous prime is 1312022120341. The next prime is 1312022120399. The reversal of 1312022120343 is 3430212202131.

It is not a de Polignac number, because 1312022120343 - 2¹ = 1312022120341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312022120341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5583555 + ... + 5813787.

It is an arithmetic number, because the mean of its divisors is an integer number (119275946976).

Almost surely, 2^{1312022120343} is an apocalyptic number.

1312022120343 is a deficient number, since it is larger than the sum of its proper divisors (596393031273).

1312022120343 is a wasteful number, since it uses less digits than its factorization.

1312022120343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402934.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1312022120343 its reverse (3430212202131), we get a palindrome (4742234322474).

The spelling of 1312022120343 in words is "one trillion, three hundred twelve billion, twenty-two million, one hundred twenty thousand, three hundred forty-three".