1312021353514 has 8 divisors (see below), whose sum is σ = 1968212005668. Its totient is φ = 655950684960.

The previous prime is 1312021353439. The next prime is 1312021353527. The reversal of 1312021353514 is 4153531202131.

It can be written as a sum of positive squares in 2 ways, for example, as 935311423225 + 376709930289 = 967115^2 + 613767^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 29968557 + ... + 30012304.

Almost surely, 2^{1312021353514} is an apocalyptic number.

1312021353514 is a deficient number, since it is larger than the sum of its proper divisors (656190652154).

1312021353514 is a wasteful number, since it uses less digits than its factorization.

1312021353514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59991800.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1312021353514 its reverse (4153531202131), we get a palindrome (5465552555645).

The spelling of 1312021353514 in words is "one trillion, three hundred twelve billion, twenty-one million, three hundred fifty-three thousand, five hundred fourteen".