42253051321 has 16 divisors (see below), whose sum is σ = 45881877888. Its totient is φ = 38678889600.

The previous prime is 42253051223. The next prime is 42253051327. The reversal of 42253051321 is 12315035224.

It is not a de Polignac number, because 42253051321 - 2¹¹ = 42253049273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42253051321.

It is not an unprimeable number, because it can be changed into a prime (42253051327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824706 + ... + 1847716.

It is an arithmetic number, because the mean of its divisors is an integer number (2867617368).

Almost surely, 2^42253051321 is an apocalyptic number.

It is an amenable number.

42253051321 is a deficient number, since it is larger than the sum of its proper divisors (3628826567).

42253051321 is a wasteful number, since it uses less digits than its factorization.

42253051321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24192.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 42253051321 its reverse (12315035224), we get a palindrome (54568086545).

It can be divided in two parts, 422530 and 51321, that added together give a triangular number (473851 = T₉₇₃).

The spelling of 42253051321 in words is "forty-two billion, two hundred fifty-three million, fifty-one thousand, three hundred twenty-one".