5042042121 has 8 divisors (see below), whose sum is σ = 7118177184. Its totient is φ = 3163634240.

The previous prime is 5042042111. The next prime is 5042042143. The reversal of 5042042121 is 1212402405.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5042042121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5042042111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49431735 + ... + 49431836.

It is an arithmetic number, because the mean of its divisors is an integer number (889772148).

Almost surely, 2^5042042121 is an apocalyptic number.

5042042121 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5042042121 is a deficient number, since it is larger than the sum of its proper divisors (2076135063).

5042042121 is a wasteful number, since it uses less digits than its factorization.

5042042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98863591.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 5042042121 is about 71007.3385010310. The cubic root of 5042042121 is about 1714.7553103404.

Adding to 5042042121 its reverse (1212402405), we get a palindrome (6254444526).

The spelling of 5042042121 in words is "five billion, forty-two million, forty-two thousand, one hundred twenty-one".