1371346645523 has 2 divisors, whose sum is σ = 1371346645524. Its totient is φ = 1371346645522.

The previous prime is 1371346645507. The next prime is 1371346645547. The reversal of 1371346645523 is 3255466431731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1371346645523 - 2⁴ = 1371346645507 is a prime.

It is not a weakly prime, because it can be changed into another prime (1371346645553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685673322761 + 685673322762.

It is an arithmetic number, because the mean of its divisors is an integer number (685673322762).

Almost surely, 2^{1371346645523} is an apocalyptic number.

1371346645523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371346645523 is an equidigital number, since it uses as much as digits as its factorization.

1371346645523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 50.

The spelling of 1371346645523 in words is "one trillion, three hundred seventy-one billion, three hundred forty-six million, six hundred forty-five thousand, five hundred twenty-three".