1272907942001 has 2 divisors, whose sum is σ = 1272907942002. Its totient is φ = 1272907942000.

The previous prime is 1272907941889. The next prime is 1272907942057. The reversal of 1272907942001 is 1002497092721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 709393485025 + 563514456976 = 842255^2 + 750676^2 .

It is an emirp because it is prime and its reverse (1002497092721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1272907942001 - 2¹⁰ = 1272907940977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1272907941001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636453971000 + 636453971001.

It is an arithmetic number, because the mean of its divisors is an integer number (636453971001).

Almost surely, 2^{1272907942001} is an apocalyptic number.

It is an amenable number.

1272907942001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272907942001 is an equidigital number, since it uses as much as digits as its factorization.

1272907942001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 1272907942001 in words is "one trillion, two hundred seventy-two billion, nine hundred seven million, nine hundred forty-two thousand, one".