30121606640105 has 16 divisors (see below), whose sum is σ = 36171451464960. Its totient is φ = 24080270692608.

The previous prime is 30121606640101. The next prime is 30121606640113. The reversal of 30121606640105 is 50104660612103.

It is a cyclic number.

It is not a de Polignac number, because 30121606640105 - 2² = 30121606640101 is a prime.

It is a super-2 number, since 2×30121606640105² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30121606640101) 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, 401803616 + ... + 401878574.

It is an arithmetic number, because the mean of its divisors is an integer number (2260715716560).

Almost surely, 2^{30121606640105} is an apocalyptic number.

It is an amenable number.

30121606640105 is a deficient number, since it is larger than the sum of its proper divisors (6049844824855).

30121606640105 is a wasteful number, since it uses less digits than its factorization.

30121606640105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130640.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 30121606640105 in words is "thirty trillion, one hundred twenty-one billion, six hundred six million, six hundred forty thousand, one hundred five".