30301831806 has 16 divisors (see below), whose sum is σ = 60605830800. Its totient is φ = 10100249408.

The previous prime is 30301831793. The next prime is 30301831811. The reversal of 30301831806 is 60813810303.

It is a happy number.

It is a super-2 number, since 2×30301831806² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134530 + ... + 280538.

It is an arithmetic number, because the mean of its divisors is an integer number (3787864425).

Almost surely, 2^30301831806 is an apocalyptic number.

30301831806 is an abundant number, since it is smaller than the sum of its proper divisors (30303998994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30301831806 is a wasteful number, since it uses less digits than its factorization.

30301831806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180603.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 30301831806 in words is "thirty billion, three hundred one million, eight hundred thirty-one thousand, eight hundred six".