1113021023 has 2 divisors, whose sum is σ = 1113021024. Its totient is φ = 1113021022.

The previous prime is 1113021011. The next prime is 1113021029. The reversal of 1113021023 is 3201203111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1113021023 - 2⁸ = 1113020767 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113020989 and 1113021007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113021029) 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, 556510511 + 556510512.

It is an arithmetic number, because the mean of its divisors is an integer number (556510512).

Almost surely, 2^1113021023 is an apocalyptic number.

1113021023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113021023 is an equidigital number, since it uses as much as digits as its factorization.

1113021023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1113021023 is about 33361.9697110347. The cubic root of 1113021023 is about 1036.3372829726.

Adding to 1113021023 its reverse (3201203111), we get a palindrome (4314224134).

The spelling of 1113021023 in words is "one billion, one hundred thirteen million, twenty-one thousand, twenty-three".