4020321135 has 16 divisors (see below), whose sum is σ = 6434342496. Its totient is φ = 2143561728.

The previous prime is 4020321121. The next prime is 4020321167. The reversal of 4020321135 is 5311230204.

It is not a de Polignac number, because 4020321135 - 2¹¹ = 4020319087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19207 + ... + 91703.

It is an arithmetic number, because the mean of its divisors is an integer number (402146406).

Almost surely, 2^4020321135 is an apocalyptic number.

4020321135 is a deficient number, since it is larger than the sum of its proper divisors (2414021361).

4020321135 is a wasteful number, since it uses less digits than its factorization.

4020321135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76202.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 4020321135 is about 63406.0023578210. The cubic root of 4020321135 is about 1590.0846618422.

Adding to 4020321135 its reverse (5311230204), we get a palindrome (9331551339).

The spelling of 4020321135 in words is "four billion, twenty million, three hundred twenty-one thousand, one hundred thirty-five".