30121532517 has 16 divisors (see below), whose sum is σ = 40283209728. Its totient is φ = 20020482480.

The previous prime is 30121532503. The next prime is 30121532533. The reversal of 30121532517 is 71523512103.

It is not a de Polignac number, because 30121532517 - 2³² = 25826565221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121532557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4490388 + ... + 4497090.

It is an arithmetic number, because the mean of its divisors is an integer number (2517700608).

Almost surely, 2^30121532517 is an apocalyptic number.

It is an amenable number.

30121532517 is a deficient number, since it is larger than the sum of its proper divisors (10161677211).

30121532517 is a wasteful number, since it uses less digits than its factorization.

30121532517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000.

The product of its (nonzero) digits is 6300, while the sum is 30.

The spelling of 30121532517 in words is "thirty billion, one hundred twenty-one million, five hundred thirty-two thousand, five hundred seventeen".