42321332040021 has 48 divisors (see below), whose sum is σ = 63737337291264. Its totient is φ = 28062056669184.

The previous prime is 42321332040019. The next prime is 42321332040059. The reversal of 42321332040021 is 12004023312324.

42321332040021 is a `hidden beast` number, since 4 + 2 + 3 + 213 + 3 + 20 + 400 + 21 = 666.

It is not a de Polignac number, because 42321332040021 - 2¹ = 42321332040019 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321332040521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59089365 + ... + 59801301.

It is an arithmetic number, because the mean of its divisors is an integer number (1327861193568).

Almost surely, 2^{42321332040021} is an apocalyptic number.

It is an amenable number.

42321332040021 is a deficient number, since it is larger than the sum of its proper divisors (21416005251243).

42321332040021 is a wasteful number, since it uses less digits than its factorization.

42321332040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713272 (or 713260 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 42321332040021 its reverse (12004023312324), we get a palindrome (54325355352345).

The spelling of 42321332040021 in words is "forty-two trillion, three hundred twenty-one billion, three hundred thirty-two million, forty thousand, twenty-one".