30516420153 has 4 divisors (see below), whose sum is σ = 40688560208. Its totient is φ = 20344280100.

The previous prime is 30516420139. The next prime is 30516420173. The reversal of 30516420153 is 35102461503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30516420153 - 2⁹ = 30516419641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30516420153.

It is not an unprimeable number, because it can be changed into a prime (30516420133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5086070023 + ... + 5086070028.

It is an arithmetic number, because the mean of its divisors is an integer number (10172140052).

Almost surely, 2^30516420153 is an apocalyptic number.

It is an amenable number.

30516420153 is a deficient number, since it is larger than the sum of its proper divisors (10172140055).

30516420153 is a wasteful number, since it uses less digits than its factorization.

30516420153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10172140054.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 30516420153 its reverse (35102461503), we get a palindrome (65618881656).

The spelling of 30516420153 in words is "thirty billion, five hundred sixteen million, four hundred twenty thousand, one hundred fifty-three".