1021234011271 has 2 divisors, whose sum is σ = 1021234011272. Its totient is φ = 1021234011270.

The previous prime is 1021234011209. The next prime is 1021234011277. The reversal of 1021234011271 is 1721104321201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021234011271 - 2³⁷ = 883795057799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021234011277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510617005635 + 510617005636.

It is an arithmetic number, because the mean of its divisors is an integer number (510617005636).

Almost surely, 2^{1021234011271} is an apocalyptic number.

1021234011271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021234011271 is an equidigital number, since it uses as much as digits as its factorization.

1021234011271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 1021234011271 its reverse (1721104321201), we get a palindrome (2742338332472).

The spelling of 1021234011271 in words is "one trillion, twenty-one billion, two hundred thirty-four million, eleven thousand, two hundred seventy-one".