42110105251 has 12 divisors (see below), whose sum is σ = 44629120800. Its totient is φ = 39726782928.

The previous prime is 42110105227. The next prime is 42110105293. The reversal of 42110105251 is 15250101124.

It is not a de Polignac number, because 42110105251 - 2¹⁹ = 42109580963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42110105551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157756 + ... + 330313.

It is an arithmetic number, because the mean of its divisors is an integer number (3719093400).

Almost surely, 2^42110105251 is an apocalyptic number.

42110105251 is a deficient number, since it is larger than the sum of its proper divisors (2519015549).

42110105251 is a wasteful number, since it uses less digits than its factorization.

42110105251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488346 (or 488327 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 42110105251 its reverse (15250101124), we get a palindrome (57360206375).

The spelling of 42110105251 in words is "forty-two billion, one hundred ten million, one hundred five thousand, two hundred fifty-one".