30534120215115 has 32 divisors (see below), whose sum is σ = 53407184025600. Its totient is φ = 14773514949120.

The previous prime is 30534120215111. The next prime is 30534120215141. The reversal of 30534120215115 is 51151202143503.

It is not a de Polignac number, because 30534120215115 - 2² = 30534120215111 is a prime.

It is a super-2 number, since 2×30534120215115² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (30534120215111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193089310 + ... + 193247379.

It is an arithmetic number, because the mean of its divisors is an integer number (1668974500800).

Almost surely, 2^{30534120215115} is an apocalyptic number.

30534120215115 is a deficient number, since it is larger than the sum of its proper divisors (22873063810485).

30534120215115 is a wasteful number, since it uses less digits than its factorization.

30534120215115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386337187.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 30534120215115 its reverse (51151202143503), we get a palindrome (81685322358618).

The spelling of 30534120215115 in words is "thirty trillion, five hundred thirty-four billion, one hundred twenty million, two hundred fifteen thousand, one hundred fifteen".