1066311031 has 2 divisors, whose sum is σ = 1066311032. Its totient is φ = 1066311030.

The previous prime is 1066311023. The next prime is 1066311041. The reversal of 1066311031 is 1301136601.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1066311031 - 2³ = 1066311023 is a prime.

It is a super-2 number, since 2×1066311031² = 2274038429664565922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066310993 and 1066311011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066311011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533155515 + 533155516.

It is an arithmetic number, because the mean of its divisors is an integer number (533155516).

Almost surely, 2^1066311031 is an apocalyptic number.

1066311031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066311031 is an equidigital number, since it uses as much as digits as its factorization.

1066311031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1066311031 is about 32654.4182462343. The cubic root of 1066311031 is about 1021.6323443335.

Adding to 1066311031 its reverse (1301136601), we get a palindrome (2367447632).

The spelling of 1066311031 in words is "one billion, sixty-six million, three hundred eleven thousand, thirty-one".