42801321105 has 16 divisors (see below), whose sum is σ = 76091237760. Its totient is φ = 22827371184.

The previous prime is 42801321103. The next prime is 42801321113. The reversal of 42801321105 is 50112310824.

42801321105 is a `hidden beast` number, since 428 + 0 + 132 + 1 + 105 = 666.

It is not a de Polignac number, because 42801321105 - 2¹ = 42801321103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42801321103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158523277 + ... + 158523546.

It is an arithmetic number, because the mean of its divisors is an integer number (4755702360).

Almost surely, 2^42801321105 is an apocalyptic number.

42801321105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42801321105 is a deficient number, since it is larger than the sum of its proper divisors (33289916655).

42801321105 is a wasteful number, since it uses less digits than its factorization.

42801321105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317046837 (or 317046831 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 42801321105 its reverse (50112310824), we get a palindrome (92913631929).

The spelling of 42801321105 in words is "forty-two billion, eight hundred one million, three hundred twenty-one thousand, one hundred five".