42332040213421 has 12 divisors (see below), whose sum is σ = 49418637127740. Its totient is φ = 36155479174080.

The previous prime is 42332040213389. The next prime is 42332040213473. The reversal of 42332040213421 is 12431204023324.

It can be written as a sum of positive squares in 2 ways, for example, as 15411819272521 + 26920220940900 = 3925789^2 + 5188470^2 .

It is not a de Polignac number, because 42332040213421 - 2⁵ = 42332040213389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42332040213721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1537208986 + ... + 1537236523.

It is an arithmetic number, because the mean of its divisors is an integer number (4118219760645).

Almost surely, 2^{42332040213421} is an apocalyptic number.

It is an amenable number.

42332040213421 is a deficient number, since it is larger than the sum of its proper divisors (7086596914319).

42332040213421 is a wasteful number, since it uses less digits than its factorization.

42332040213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074445804 (or 3074445797 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 42332040213421 its reverse (12431204023324), we get a palindrome (54763244236745).

The spelling of 42332040213421 in words is "forty-two trillion, three hundred thirty-two billion, forty million, two hundred thirteen thousand, four hundred twenty-one".