1042432123 has 4 divisors (see below), whose sum is σ = 1046279008. Its totient is φ = 1038585240.

The previous prime is 1042432121. The next prime is 1042432141. The reversal of 1042432123 is 3212342401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212342401 = 8087 ⋅397223.

It is a cyclic number.

It is not a de Polignac number, because 1042432123 - 2¹ = 1042432121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042432094 and 1042432103.

It is not an unprimeable number, because it can be changed into a prime (1042432121) 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, 1923036 + ... + 1923577.

It is an arithmetic number, because the mean of its divisors is an integer number (261569752).

Almost surely, 2^1042432123 is an apocalyptic number.

1042432123 is a deficient number, since it is larger than the sum of its proper divisors (3846885).

1042432123 is an equidigital number, since it uses as much as digits as its factorization.

1042432123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846884.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1042432123 is about 32286.7174392195. The cubic root of 1042432123 is about 1013.9485736685.

Adding to 1042432123 its reverse (3212342401), we get a palindrome (4254774524).

The spelling of 1042432123 in words is "one billion, forty-two million, four hundred thirty-two thousand, one hundred twenty-three".