1123100125 has 16 divisors (see below), whose sum is σ = 1601862912. Its totient is φ = 770125200.

The previous prime is 1123100117. The next prime is 1123100129. The reversal of 1123100125 is 5210013211.

It is not a de Polignac number, because 1123100125 - 2³ = 1123100117 is a prime.

It is a super-2 number, since 2×1123100125² = 2522707781550031250, 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 = 1123100099 and 1123100108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123100129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640897 + ... + 642646.

It is an arithmetic number, because the mean of its divisors is an integer number (100116432).

Almost surely, 2^1123100125 is an apocalyptic number.

It is an amenable number.

1123100125 is a deficient number, since it is larger than the sum of its proper divisors (478762787).

1123100125 is an equidigital number, since it uses as much as digits as its factorization.

1123100125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283565 (or 1283555 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1123100125 is about 33512.6860308153. The cubic root of 1123100125 is about 1039.4561150860.

Adding to 1123100125 its reverse (5210013211), we get a palindrome (6333113336).

The spelling of 1123100125 in words is "one billion, one hundred twenty-three million, one hundred thousand, one hundred twenty-five".