1113020023 has 4 divisors (see below), whose sum is σ = 1113150168. Its totient is φ = 1112889880.

The previous prime is 1113019991. The next prime is 1113020033. The reversal of 1113020023 is 3200203111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200203111 = 7 ⋅457171873.

It is a cyclic number.

It is not a de Polignac number, because 1113020023 - 2⁵ = 1113019991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113019985 and 1113020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113020033) 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 in 3 ways as a sum of consecutive naturals, for example, 51268 + ... + 69673.

It is an arithmetic number, because the mean of its divisors is an integer number (278287542).

Almost surely, 2^1113020023 is an apocalyptic number.

1113020023 is a deficient number, since it is larger than the sum of its proper divisors (130145).

1113020023 is an equidigital number, since it uses as much as digits as its factorization.

1113020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130144.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1113020023 is about 33361.9547239067. The cubic root of 1113020023 is about 1036.3369726048.

Adding to 1113020023 its reverse (3200203111), we get a palindrome (4313223134).

The spelling of 1113020023 in words is "one billion, one hundred thirteen million, twenty thousand, twenty-three".