1031142271 has 2 divisors, whose sum is σ = 1031142272. Its totient is φ = 1031142270.

The previous prime is 1031142269. The next prime is 1031142323. The reversal of 1031142271 is 1722411301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031142271 - 2¹ = 1031142269 is a prime.

Together with 1031142269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031142571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515571135 + 515571136.

It is an arithmetic number, because the mean of its divisors is an integer number (515571136).

Almost surely, 2^1031142271 is an apocalyptic number.

1031142271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031142271 is an equidigital number, since it uses as much as digits as its factorization.

1031142271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1031142271 is about 32111.4040645999. The cubic root of 1031142271 is about 1010.2748234257.

Adding to 1031142271 its reverse (1722411301), we get a palindrome (2753553572).

The spelling of 1031142271 in words is "one billion, thirty-one million, one hundred forty-two thousand, two hundred seventy-one".