102423232042 has 4 divisors (see below), whose sum is σ = 153634848066. Its totient is φ = 51211616020.

The previous prime is 102423232039. The next prime is 102423232063. The reversal of 102423232042 is 240232324201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 67308594721 + 35114637321 = 259439^2 + 187389^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102423231998 and 102423232016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25605808009 + ... + 25605808012.

Almost surely, 2^102423232042 is an apocalyptic number.

102423232042 is a deficient number, since it is larger than the sum of its proper divisors (51211616024).

102423232042 is an equidigital number, since it uses as much as digits as its factorization.

102423232042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51211616023.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 102423232042 its reverse (240232324201), we get a palindrome (342655556243).

The spelling of 102423232042 in words is "one hundred two billion, four hundred twenty-three million, two hundred thirty-two thousand, forty-two".