1120023011 has 4 divisors (see below), whose sum is σ = 1122453024. Its totient is φ = 1117593000.

The previous prime is 1120022971. The next prime is 1120023029. The reversal of 1120023011 is 1103200211.

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 1120023011 - 2²⁶ = 1052914147 is a prime.

It is a super-2 number, since 2×1120023011² = 2508903090339012242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120022983 and 1120023001.

It is not an unprimeable number, because it can be changed into a prime (1120023031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214315 + ... + 1215236.

It is an arithmetic number, because the mean of its divisors is an integer number (280613256).

Almost surely, 2^1120023011 is an apocalyptic number.

1120023011 is a deficient number, since it is larger than the sum of its proper divisors (2430013).

1120023011 is an equidigital number, since it uses as much as digits as its factorization.

1120023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430012.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1120023011 is about 33466.7448521663. The cubic root of 1120023011 is about 1038.5059324930.

Adding to 1120023011 its reverse (1103200211), we get a palindrome (2223223222).

The spelling of 1120023011 in words is "one billion, one hundred twenty million, twenty-three thousand, eleven".