30315014005021 has 4 divisors (see below), whose sum is σ = 30316565378844. Its totient is φ = 30313462631200.

The previous prime is 30315014005007. The next prime is 30315014005027. The reversal of 30315014005021 is 12050041051303.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18864133277796 + 11450880727225 = 4343286^2 + 3383915^2 .

It is a cyclic number.

It is not a de Polignac number, because 30315014005021 - 2⁷ = 30315014004893 is a prime.

It is a super-2 number, since 2×30315014005021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30315014005027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775657600 + ... + 775696681.

It is an arithmetic number, because the mean of its divisors is an integer number (7579141344711).

Almost surely, 2^{30315014005021} is an apocalyptic number.

It is an amenable number.

30315014005021 is a deficient number, since it is larger than the sum of its proper divisors (1551373823).

30315014005021 is a wasteful number, since it uses less digits than its factorization.

30315014005021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551373822.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 30315014005021 its reverse (12050041051303), we get a palindrome (42365055056324).

The spelling of 30315014005021 in words is "thirty trillion, three hundred fifteen billion, fourteen million, five thousand, twenty-one".