42120321332 has 24 divisors (see below), whose sum is σ = 75136190976. Its totient is φ = 20653207328.

The previous prime is 42120321311. The next prime is 42120321343. The reversal of 42120321332 is 23312302124.

It is a super-2 number, since 2×42120321332² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42120321298 and 42120321307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422873 + ... + 512895.

It is an arithmetic number, because the mean of its divisors is an integer number (3130674624).

Almost surely, 2^42120321332 is an apocalyptic number.

It is an amenable number.

42120321332 is a deficient number, since it is larger than the sum of its proper divisors (33015869644).

42120321332 is a wasteful number, since it uses less digits than its factorization.

42120321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92287 (or 92285 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 42120321332 its reverse (23312302124), we get a palindrome (65432623456).

The spelling of 42120321332 in words is "forty-two billion, one hundred twenty million, three hundred twenty-one thousand, three hundred thirty-two".