30121305613641 has 24 divisors (see below), whose sum is σ = 48567686577696. Its totient is φ = 17830794018240.

The previous prime is 30121305613603. The next prime is 30121305613649. The reversal of 30121305613641 is 14631650312103.

30121305613641 is a `hidden beast` number, since 3 + 0 + 1 + 2 + 1 + 3 + 0 + 5 + 6 + 1 + 3 + 641 = 666.

It is not a de Polignac number, because 30121305613641 - 2⁷ = 30121305613513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30121305613596 and 30121305613605.

It is not an unprimeable number, because it can be changed into a prime (30121305613649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3537851700 + ... + 3537860213.

It is an arithmetic number, because the mean of its divisors is an integer number (2023653607404).

Almost surely, 2^{30121305613641} is an apocalyptic number.

It is an amenable number.

30121305613641 is a deficient number, since it is larger than the sum of its proper divisors (18446380964055).

30121305613641 is a wasteful number, since it uses less digits than its factorization.

30121305613641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075711973 (or 7075711970 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

Adding to 30121305613641 its reverse (14631650312103), we get a palindrome (44752955925744).

The spelling of 30121305613641 in words is "thirty trillion, one hundred twenty-one billion, three hundred five million, six hundred thirteen thousand, six hundred forty-one".