1372831762321 has 2 divisors, whose sum is σ = 1372831762322. Its totient is φ = 1372831762320.

The previous prime is 1372831762319. The next prime is 1372831762403. The reversal of 1372831762321 is 1232671382731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1326956548096 + 45875214225 = 1151936^2 + 214185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372831762321 - 2¹ = 1372831762319 is a prime.

Together with 1372831762319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1372831762121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686415881160 + 686415881161.

It is an arithmetic number, because the mean of its divisors is an integer number (686415881161).

Almost surely, 2^{1372831762321} is an apocalyptic number.

It is an amenable number.

1372831762321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372831762321 is an equidigital number, since it uses as much as digits as its factorization.

1372831762321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The spelling of 1372831762321 in words is "one trillion, three hundred seventy-two billion, eight hundred thirty-one million, seven hundred sixty-two thousand, three hundred twenty-one".