1290965941201 has 2 divisors, whose sum is σ = 1290965941202. Its totient is φ = 1290965941200.

The previous prime is 1290965941129. The next prime is 1290965941219. The reversal of 1290965941201 is 1021495690921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1276502270976 + 14463670225 = 1129824^2 + 120265^2 .

It is a cyclic number.

It is not a de Polignac number, because 1290965941201 - 2⁷ = 1290965941073 is a prime.

It is a super-3 number, since 3×1290965941201³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1290965941271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645482970600 + 645482970601.

It is an arithmetic number, because the mean of its divisors is an integer number (645482970601).

Almost surely, 2^{1290965941201} is an apocalyptic number.

It is an amenable number.

1290965941201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290965941201 is an equidigital number, since it uses as much as digits as its factorization.

1290965941201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 1290965941201 in words is "one trillion, two hundred ninety billion, nine hundred sixty-five million, nine hundred forty-one thousand, two hundred one".