1321337675237 has 8 divisors (see below), whose sum is σ = 1348442746200. Its totient is φ = 1294505017344.

The previous prime is 1321337675221. The next prime is 1321337675269. The reversal of 1321337675237 is 7325767331231.

It can be written as a sum of positive squares in 4 ways, for example, as 326034148036 + 995303527201 = 570994^2 + 997649^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1321337675237 - 2⁴ = 1321337675221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321337675297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68093468 + ... + 68112869.

It is an arithmetic number, because the mean of its divisors is an integer number (168555343275).

Almost surely, 2^{1321337675237} is an apocalyptic number.

It is an amenable number.

1321337675237 is a deficient number, since it is larger than the sum of its proper divisors (27105070963).

1321337675237 is a wasteful number, since it uses less digits than its factorization.

1321337675237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136206535.

The product of its digits is 3333960, while the sum is 50.

The spelling of 1321337675237 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-seven million, six hundred seventy-five thousand, two hundred thirty-seven".