42123040210 has 8 divisors (see below), whose sum is σ = 75821472396. Its totient is φ = 16849216080.

The previous prime is 42123040207. The next prime is 42123040217. The reversal of 42123040210 is 1204032124.

It can be written as a sum of positive squares in 2 ways, for example, as 41929524289 + 193515921 = 204767^2 + 13911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42123040217) 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, 2106152001 + ... + 2106152020.

Almost surely, 2^42123040210 is an apocalyptic number.

42123040210 is a deficient number, since it is larger than the sum of its proper divisors (33698432186).

42123040210 is a wasteful number, since it uses less digits than its factorization.

42123040210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212304028.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 42123040210 its reverse (1204032124), we get a palindrome (43327072334).

The spelling of 42123040210 in words is "forty-two billion, one hundred twenty-three million, forty thousand, two hundred ten".