30161011215 has 32 divisors (see below), whose sum is σ = 48385092096. Its totient is φ = 16043448960.

The previous prime is 30161011187. The next prime is 30161011253. The reversal of 30161011215 is 51211016103.

It is a happy number.

It is not a de Polignac number, because 30161011215 - 2⁷ = 30161011087 is a prime.

It is a super-2 number, since 2×30161011215² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30161011191 and 30161011200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13049910 + ... + 13052220.

It is an arithmetic number, because the mean of its divisors is an integer number (1512034128).

Almost surely, 2^30161011215 is an apocalyptic number.

30161011215 is a deficient number, since it is larger than the sum of its proper divisors (18224080881).

30161011215 is a wasteful number, since it uses less digits than its factorization.

30161011215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 30161011215 its reverse (51211016103), we get a palindrome (81372027318).

The spelling of 30161011215 in words is "thirty billion, one hundred sixty-one million, eleven thousand, two hundred fifteen".