30621336115120 has 80 divisors (see below), whose sum is σ = 71558558798400. Its totient is φ = 12185929654272.

The previous prime is 30621336115033. The next prime is 30621336115169. The reversal of 30621336115120 is 2151163312603.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×30621336115120² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198875284 + ... + 199029196.

It is an arithmetic number, because the mean of its divisors is an integer number (894481984980).

Almost surely, 2^{30621336115120} is an apocalyptic number.

It is an amenable number.

30621336115120 is an abundant number, since it is smaller than the sum of its proper divisors (40937222683280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30621336115120 is a wasteful number, since it uses less digits than its factorization.

30621336115120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166622 (or 166616 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 30621336115120 its reverse (2151163312603), we get a palindrome (32772499427723).

The spelling of 30621336115120 in words is "thirty trillion, six hundred twenty-one billion, three hundred thirty-six million, one hundred fifteen thousand, one hundred twenty".