1351104202561 has 2 divisors, whose sum is σ = 1351104202562. Its totient is φ = 1351104202560.

The previous prime is 1351104202537. The next prime is 1351104202673. The reversal of 1351104202561 is 1652024011531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1311116601600 + 39987600961 = 1145040^2 + 199969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351104202561 - 2¹⁷ = 1351104071489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1351104202061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675552101280 + 675552101281.

It is an arithmetic number, because the mean of its divisors is an integer number (675552101281).

Almost surely, 2^{1351104202561} is an apocalyptic number.

It is an amenable number.

1351104202561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351104202561 is an equidigital number, since it uses as much as digits as its factorization.

1351104202561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 1351104202561 in words is "one trillion, three hundred fifty-one billion, one hundred four million, two hundred two thousand, five hundred sixty-one".