104002023220042 has 4 divisors (see below), whose sum is σ = 156003034830066. Its totient is φ = 52001011610020.

The previous prime is 104002023220001. The next prime is 104002023220061. The reversal of 104002023220042 is 240022320200401.

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., 73588243132881 + 30413780087161 = 8578359^2 + 5514869^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 104002023219995 and 104002023220022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26000505805009 + ... + 26000505805012.

Almost surely, 2^{104002023220042} is an apocalyptic number.

104002023220042 is a deficient number, since it is larger than the sum of its proper divisors (52001011610024).

104002023220042 is an equidigital number, since it uses as much as digits as its factorization.

104002023220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52001011610023.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 104002023220042 its reverse (240022320200401), we get a palindrome (344024343420443).

The spelling of 104002023220042 in words is "one hundred four trillion, two billion, twenty-three million, two hundred twenty thousand, forty-two".