1289392217341 has 2 divisors, whose sum is σ = 1289392217342. Its totient is φ = 1289392217340.

The previous prime is 1289392217329. The next prime is 1289392217411. The reversal of 1289392217341 is 1437122939821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 744717220900 + 544674996441 = 862970^2 + 738021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1289392217341 - 2⁷ = 1289392217213 is a prime.

It is a super-2 number, since 2×1289392217341² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1289392217441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644696108670 + 644696108671.

It is an arithmetic number, because the mean of its divisors is an integer number (644696108671).

Almost surely, 2^{1289392217341} is an apocalyptic number.

It is an amenable number.

1289392217341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1289392217341 is an equidigital number, since it uses as much as digits as its factorization.

1289392217341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The spelling of 1289392217341 in words is "one trillion, two hundred eighty-nine billion, three hundred ninety-two million, two hundred seventeen thousand, three hundred forty-one".