3020355081 has 16 divisors (see below), whose sum is σ = 4550443200. Its totient is φ = 1979440704.

The previous prime is 3020355061. The next prime is 3020355137. The reversal of 3020355081 is 1805530203.

3020355081 is a `hidden beast` number, since 30 + 2 + 0 + 3 + 550 + 81 = 666.

It is not a de Polignac number, because 3020355081 - 2⁵ = 3020355049 is a prime.

It is a super-2 number, since 2×3020355081² = 18245089630645033122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3020355061) 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, 946416 + ... + 949601.

It is an arithmetic number, because the mean of its divisors is an integer number (284402700).

Almost surely, 2^3020355081 is an apocalyptic number.

It is an amenable number.

3020355081 is a deficient number, since it is larger than the sum of its proper divisors (1530088119).

3020355081 is a wasteful number, since it uses less digits than its factorization.

3020355081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896085 (or 1896079 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 3020355081 is about 54957.7572413577. The cubic root of 3020355081 is about 1445.5041213878.

Adding to 3020355081 its reverse (1805530203), we get a palindrome (4825885284).

The spelling of 3020355081 in words is "three billion, twenty million, three hundred fifty-five thousand, eighty-one".