1232432123 has 4 divisors (see below), whose sum is σ = 1327234608. Its totient is φ = 1137629640.

The previous prime is 1232432107. The next prime is 1232432137. The reversal of 1232432123 is 3212342321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212342321 = 17 ⋅188961313.

It is a cyclic number.

It is not a de Polignac number, because 1232432123 - 2⁴ = 1232432107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232432143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47401223 + ... + 47401248.

It is an arithmetic number, because the mean of its divisors is an integer number (331808652).

Almost surely, 2^1232432123 is an apocalyptic number.

1232432123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1232432123 is a deficient number, since it is larger than the sum of its proper divisors (94802485).

1232432123 is an equidigital number, since it uses as much as digits as its factorization.

1232432123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94802484.

The product of its digits is 1728, while the sum is 23.

The square root of 1232432123 is about 35106.0126331658. The cubic root of 1232432123 is about 1072.1470044536.

Adding to 1232432123 its reverse (3212342321), we get a palindrome (4444774444).

The spelling of 1232432123 in words is "one billion, two hundred thirty-two million, four hundred thirty-two thousand, one hundred twenty-three".