1123433125 has 30 divisors (see below), whose sum is σ = 1426110686. Its totient is φ = 884676000.

The previous prime is 1123433119. The next prime is 1123433161. The reversal of 1123433125 is 5213343211.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 559180609 + 564252516 = 23647^2 + 23754^2 .

It is not a de Polignac number, because 1123433125 - 2¹⁵ = 1123400357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123433125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7155547 + ... + 7155703.

Almost surely, 2^1123433125 is an apocalyptic number.

It is an amenable number.

1123433125 is a deficient number, since it is larger than the sum of its proper divisors (302677561).

1123433125 is an frugal number, since it uses more digits than its factorization.

1123433125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 269 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1123433125 is about 33517.6539304290. The cubic root of 1123433125 is about 1039.5588380977.

Adding to 1123433125 its reverse (5213343211), we get a palindrome (6336776336).

The spelling of 1123433125 in words is "one billion, one hundred twenty-three million, four hundred thirty-three thousand, one hundred twenty-five".