1040011393 has 2 divisors, whose sum is σ = 1040011394. Its totient is φ = 1040011392.

The previous prime is 1040011391. The next prime is 1040011403. The reversal of 1040011393 is 3931100401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 724309569 + 315701824 = 26913^2 + 17768^2 .

It is an emirp because it is prime and its reverse (3931100401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1040011393 - 2¹ = 1040011391 is a prime.

Together with 1040011391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1040011391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520005696 + 520005697.

It is an arithmetic number, because the mean of its divisors is an integer number (520005697).

Almost surely, 2^1040011393 is an apocalyptic number.

It is an amenable number.

1040011393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040011393 is an equidigital number, since it uses as much as digits as its factorization.

1040011393 is an evil number, because the sum of its binary digits is even.

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

The square root of 1040011393 is about 32249.2076336768. The cubic root of 1040011393 is about 1013.1631034621.

Adding to 1040011393 its reverse (3931100401), we get a palindrome (4971111794).

The spelling of 1040011393 in words is "one billion, forty million, eleven thousand, three hundred ninety-three".