1351041452521 has 2 divisors, whose sum is σ = 1351041452522. Its totient is φ = 1351041452520.

The previous prime is 1351041452507. The next prime is 1351041452603. The reversal of 1351041452521 is 1252541401531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1174490220121 + 176551232400 = 1083739^2 + 420180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351041452521 - 2⁹ = 1351041452009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1351041452021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675520726260 + 675520726261.

It is an arithmetic number, because the mean of its divisors is an integer number (675520726261).

Almost surely, 2^{1351041452521} is an apocalyptic number.

It is an amenable number.

1351041452521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351041452521 is an equidigital number, since it uses as much as digits as its factorization.

1351041452521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 1351041452521 in words is "one trillion, three hundred fifty-one billion, forty-one million, four hundred fifty-two thousand, five hundred twenty-one".