1011001201271 has 2 divisors, whose sum is σ = 1011001201272. Its totient is φ = 1011001201270.

The previous prime is 1011001201207. The next prime is 1011001201277. The reversal of 1011001201271 is 1721021001101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011001201271 - 2⁶ = 1011001201207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011001201277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505500600635 + 505500600636.

It is an arithmetic number, because the mean of its divisors is an integer number (505500600636).

Almost surely, 2^{1011001201271} is an apocalyptic number.

1011001201271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011001201271 is an equidigital number, since it uses as much as digits as its factorization.

1011001201271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 1011001201271 its reverse (1721021001101), we get a palindrome (2732022202372).

The spelling of 1011001201271 in words is "one trillion, eleven billion, one million, two hundred one thousand, two hundred seventy-one".