1121112023 has 4 divisors (see below), whose sum is σ = 1169856048. Its totient is φ = 1072368000.

The previous prime is 1121112007. The next prime is 1121112089. The reversal of 1121112023 is 3202111211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121112023 - 2⁴ = 1121112007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121111989 and 1121112007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121112523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24371978 + ... + 24372023.

It is an arithmetic number, because the mean of its divisors is an integer number (292464012).

Almost surely, 2^1121112023 is an apocalyptic number.

1121112023 is a deficient number, since it is larger than the sum of its proper divisors (48744025).

1121112023 is an equidigital number, since it uses as much as digits as its factorization.

1121112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48744024.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1121112023 is about 33483.0109607843. The cubic root of 1121112023 is about 1038.8424074480.

Adding to 1121112023 its reverse (3202111211), we get a palindrome (4323223234).

The spelling of 1121112023 in words is "one billion, one hundred twenty-one million, one hundred twelve thousand, twenty-three".