1012332091 has 2 divisors, whose sum is σ = 1012332092. Its totient is φ = 1012332090.

The previous prime is 1012332067. The next prime is 1012332121. The reversal of 1012332091 is 1902332101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012332091 - 2⁵ = 1012332059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012342091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506166045 + 506166046.

It is an arithmetic number, because the mean of its divisors is an integer number (506166046).

Almost surely, 2^1012332091 is an apocalyptic number.

1012332091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012332091 is an equidigital number, since it uses as much as digits as its factorization.

1012332091 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 1012332091 is about 31817.1666086093. The cubic root of 1012332091 is about 1004.0939139967.

Adding to 1012332091 its reverse (1902332101), we get a palindrome (2914664192).

The spelling of 1012332091 in words is "one billion, twelve million, three hundred thirty-two thousand, ninety-one".