1012331143 has 2 divisors, whose sum is σ = 1012331144. Its totient is φ = 1012331142.

The previous prime is 1012331141. The next prime is 1012331161. The reversal of 1012331143 is 3411332101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012331143 - 2¹ = 1012331141 is a prime.

Together with 1012331141, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1012331143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012331141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506165571 + 506165572.

It is an arithmetic number, because the mean of its divisors is an integer number (506165572).

Almost surely, 2^1012331143 is an apocalyptic number.

1012331143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012331143 is an equidigital number, since it uses as much as digits as its factorization.

1012331143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1012331143 is about 31817.1517109876. The cubic root of 1012331143 is about 1004.0936005681.

Adding to 1012331143 its reverse (3411332101), we get a palindrome (4423663244).

The spelling of 1012331143 in words is "one billion, twelve million, three hundred thirty-one thousand, one hundred forty-three".