1125321423 has 16 divisors (see below), whose sum is σ = 1585198080. Its totient is φ = 708930656.

The previous prime is 1125321403. The next prime is 1125321469. The reversal of 1125321423 is 3241235211.

It is a cyclic number.

It is not a de Polignac number, because 1125321423 - 2¹⁷ = 1125190351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1125321393 and 1125321402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125321403) 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, 133515 + ... + 141692.

It is an arithmetic number, because the mean of its divisors is an integer number (99074880).

Almost surely, 2^1125321423 is an apocalyptic number.

1125321423 is a deficient number, since it is larger than the sum of its proper divisors (459876657).

1125321423 is a wasteful number, since it uses less digits than its factorization.

1125321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275286.

The product of its digits is 1440, while the sum is 24.

The square root of 1125321423 is about 33545.8108114858. The cubic root of 1125321423 is about 1040.1409519880.

Adding to 1125321423 its reverse (3241235211), we get a palindrome (4366556634).

The spelling of 1125321423 in words is "one billion, one hundred twenty-five million, three hundred twenty-one thousand, four hundred twenty-three".