30120012170 has 16 divisors (see below), whose sum is σ = 54220657608. Its totient is φ = 12046974720.

The previous prime is 30120012149. The next prime is 30120012173. The reversal of 30120012170 is 7121002103.

It can be written as a sum of positive squares in 4 ways, for example, as 25068072241 + 5051939929 = 158329^2 + 71077^2 .

It is a super-3 number, since 3×30120012170³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30120012173) 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, 182 + ... + 245438.

Almost surely, 2^30120012170 is an apocalyptic number.

30120012170 is a deficient number, since it is larger than the sum of its proper divisors (24100645438).

30120012170 is a wasteful number, since it uses less digits than its factorization.

30120012170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257545.

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 30120012170 its reverse (7121002103), we get a palindrome (37241014273).

The spelling of 30120012170 in words is "thirty billion, one hundred twenty million, twelve thousand, one hundred seventy".