123432132403 has 4 divisors (see below), whose sum is σ = 123454214928. Its totient is φ = 123410049880.

The previous prime is 123432132379. The next prime is 123432132409. The reversal of 123432132403 is 304231234321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304231234321 = 7 ⋅43461604903.

It is a cyclic number.

It is not a de Polignac number, because 123432132403 - 2⁹ = 123432131891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123432132409) 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, 11032876 + ... + 11044057.

It is an arithmetic number, because the mean of its divisors is an integer number (30863553732).

Almost surely, 2^123432132403 is an apocalyptic number.

123432132403 is a deficient number, since it is larger than the sum of its proper divisors (22082525).

123432132403 is an equidigital number, since it uses as much as digits as its factorization.

123432132403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22082524.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 123432132403 its reverse (304231234321), we get a palindrome (427663366724).

The spelling of 123432132403 in words is "one hundred twenty-three billion, four hundred thirty-two million, one hundred thirty-two thousand, four hundred three".