1351747723631 has 2 divisors, whose sum is σ = 1351747723632. Its totient is φ = 1351747723630.

The previous prime is 1351747723619. The next prime is 1351747723681. The reversal of 1351747723631 is 1363277471531.

It is an a-pointer prime, because the next prime (1351747723681) can be obtained adding 1351747723631 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1351747723631 - 2³⁴ = 1334567854447 is a prime.

It is a super-2 number, since 2×1351747723631² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1351747723631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351747723681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675873861815 + 675873861816.

It is an arithmetic number, because the mean of its divisors is an integer number (675873861816).

Almost surely, 2^{1351747723631} is an apocalyptic number.

1351747723631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351747723631 is an equidigital number, since it uses as much as digits as its factorization.

1351747723631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 50.

The spelling of 1351747723631 in words is "one trillion, three hundred fifty-one billion, seven hundred forty-seven million, seven hundred twenty-three thousand, six hundred thirty-one".