1353347315561 has 2 divisors, whose sum is σ = 1353347315562. Its totient is φ = 1353347315560.

The previous prime is 1353347315417. The next prime is 1353347315563. The reversal of 1353347315561 is 1655137433531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1230227032336 + 123120283225 = 1109156^2 + 350885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1353347315561 is a prime.

Together with 1353347315563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1353347315563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676673657780 + 676673657781.

It is an arithmetic number, because the mean of its divisors is an integer number (676673657781).

Almost surely, 2^{1353347315561} is an apocalyptic number.

It is an amenable number.

1353347315561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353347315561 is an equidigital number, since it uses as much as digits as its factorization.

1353347315561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1701000, while the sum is 47.

The spelling of 1353347315561 in words is "one trillion, three hundred fifty-three billion, three hundred forty-seven million, three hundred fifteen thousand, five hundred sixty-one".