4042121312002 has 8 divisors (see below), whose sum is σ = 6227051751036. Its totient is φ = 1966437394992.

The previous prime is 4042121311951. The next prime is 4042121312017. The reversal of 4042121312002 is 2002131212404.

It can be written as a sum of positive squares in 2 ways, for example, as 3774895382281 + 267225929721 = 1942909^2 + 516939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27311630413 + ... + 27311630560.

Almost surely, 2^{4042121312002} is an apocalyptic number.

4042121312002 is a deficient number, since it is larger than the sum of its proper divisors (2184930439034).

4042121312002 is a wasteful number, since it uses less digits than its factorization.

4042121312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54623261012.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 4042121312002 its reverse (2002131212404), we get a palindrome (6044252524406).

The spelling of 4042121312002 in words is "four trillion, forty-two billion, one hundred twenty-one million, three hundred twelve thousand, two".