30110020 has 24 divisors (see below), whose sum is σ = 63353304. Its totient is φ = 12020736.

The previous prime is 30109991. The next prime is 30110023. The reversal of 30110020 is 2001103.

It can be written as a sum of positive squares in 4 ways, for example, as 4384836 + 25725184 = 2094^2 + 5072^2 .

It is a super-2 number, since 2×30110020² = 1813226608800800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30109985 and 30110012.

It is not an unprimeable number, because it can be changed into a prime (30110023) 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, 12342 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (2639721).

Almost surely, 2^30110020 is an apocalyptic number.

It is an amenable number.

30110020 is an abundant number, since it is smaller than the sum of its proper divisors (33243284).

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

30110020 is a wasteful number, since it uses less digits than its factorization.

30110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 2917 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 30110020 is about 5487.2597897311. The cubic root of 30110020 is about 311.1026291149.

Adding to 30110020 its reverse (2001103), we get a palindrome (32111123).

The spelling of 30110020 in words is "thirty million, one hundred ten thousand, twenty".