105042420052 has 6 divisors (see below), whose sum is σ = 183824235098. Its totient is φ = 52521210024.

The previous prime is 105042420023. The next prime is 105042420083. The reversal of 105042420052 is 250024240501.

It can be written as a sum of positive squares in only one way, i.e., 100182378256 + 4860041796 = 316516^2 + 69714^2 .

It is a super-2 number, since 2×105042420052² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105042419999 and 105042420026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13130302503 + ... + 13130302510.

Almost surely, 2^105042420052 is an apocalyptic number.

It is an amenable number.

105042420052 is a deficient number, since it is larger than the sum of its proper divisors (78781815046).

105042420052 is a wasteful number, since it uses less digits than its factorization.

105042420052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26260605017 (or 26260605015 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 105042420052 its reverse (250024240501), we get a palindrome (355066660553).

The spelling of 105042420052 in words is "one hundred five billion, forty-two million, four hundred twenty thousand, fifty-two".