1421115977009 has 2 divisors, whose sum is σ = 1421115977010. Its totient is φ = 1421115977008.

The previous prime is 1421115976967. The next prime is 1421115977059. The reversal of 1421115977009 is 9007795111241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1288445199409 + 132670777600 = 1135097^2 + 364240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421115977009 - 2⁴⁰ = 321604349233 is a prime.

It is a super-3 number, since 3×1421115977009³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1421115977059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710557988504 + 710557988505.

It is an arithmetic number, because the mean of its divisors is an integer number (710557988505).

Almost surely, 2^{1421115977009} is an apocalyptic number.

It is an amenable number.

1421115977009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421115977009 is an equidigital number, since it uses as much as digits as its factorization.

1421115977009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 47.

The spelling of 1421115977009 in words is "one trillion, four hundred twenty-one billion, one hundred fifteen million, nine hundred seventy-seven thousand, nine".