1121232423 has 32 divisors (see below), whose sum is σ = 1622338560. Its totient is φ = 687173760.

The previous prime is 1121232421. The next prime is 1121232449. The reversal of 1121232423 is 3242321211.

It is not a de Polignac number, because 1121232423 - 2¹ = 1121232421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121232423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121232421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147588 + ... + 154998.

It is an arithmetic number, because the mean of its divisors is an integer number (50698080).

Almost surely, 2^1121232423 is an apocalyptic number.

1121232423 is a deficient number, since it is larger than the sum of its proper divisors (501106137).

1121232423 is a wasteful number, since it uses less digits than its factorization.

1121232423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527.

The product of its digits is 576, while the sum is 21.

The square root of 1121232423 is about 33484.8088392334. The cubic root of 1121232423 is about 1038.8795943797.

Adding to 1121232423 its reverse (3242321211), we get a palindrome (4363553634).

The spelling of 1121232423 in words is "one billion, one hundred twenty-one million, two hundred thirty-two thousand, four hundred twenty-three".