42120002132 has 48 divisors (see below), whose sum is σ = 81708656400. Its totient is φ = 18872082432.

The previous prime is 42120002083. The next prime is 42120002147. The reversal of 42120002132 is 23120002124.

It can be written as a sum of positive squares in 8 ways, for example, as 326741776 + 41793260356 = 18076^2 + 204434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42120002132.

It is a congruent number.

It is an unprimeable number.

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, 839498 + ... + 888254.

It is an arithmetic number, because the mean of its divisors is an integer number (1702263675).

Almost surely, 2^42120002132 is an apocalyptic number.

It is an amenable number.

42120002132 is a deficient number, since it is larger than the sum of its proper divisors (39588654268).

42120002132 is a wasteful number, since it uses less digits than its factorization.

42120002132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49260 (or 49258 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42120002132 its reverse (23120002124), we get a palindrome (65240004256).

The spelling of 42120002132 in words is "forty-two billion, one hundred twenty million, two thousand, one hundred thirty-two".