5042101021 has 16 divisors (see below), whose sum is σ = 5151773440. Its totient is φ = 4933716480.

The previous prime is 5042100983. The next prime is 5042101033. The reversal of 5042101021 is 1201012405.

It is a cyclic number.

It is not a de Polignac number, because 5042101021 - 2⁷ = 5042100893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5042100986 and 5042101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5042101721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8145250 + ... + 8145868.

It is an arithmetic number, because the mean of its divisors is an integer number (321985840).

Almost surely, 2^5042101021 is an apocalyptic number.

It is an amenable number.

5042101021 is a deficient number, since it is larger than the sum of its proper divisors (109672419).

5042101021 is a wasteful number, since it uses less digits than its factorization.

5042101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 5042101021 is about 71007.7532456844. The cubic root of 5042101021 is about 1714.7619874428.

Adding to 5042101021 its reverse (1201012405), we get a palindrome (6243113426).

The spelling of 5042101021 in words is "five billion, forty-two million, one hundred one thousand, twenty-one".