1351565500531 has 2 divisors, whose sum is σ = 1351565500532. Its totient is φ = 1351565500530.

The previous prime is 1351565500529. The next prime is 1351565500577. The reversal of 1351565500531 is 1350055651531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1351565500531 - 2¹ = 1351565500529 is a prime.

It is a super-2 number, since 2×1351565500531² (a number of 25 digits) contains 22 as substring.

Together with 1351565500529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1351565500511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675782750265 + 675782750266.

It is an arithmetic number, because the mean of its divisors is an integer number (675782750266).

Almost surely, 2^{1351565500531} is an apocalyptic number.

1351565500531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351565500531 is an equidigital number, since it uses as much as digits as its factorization.

1351565500531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168750, while the sum is 40.

The spelling of 1351565500531 in words is "one trillion, three hundred fifty-one billion, five hundred sixty-five million, five hundred thousand, five hundred thirty-one".