30121105145113 has 8 divisors (see below), whose sum is σ = 32020351485120. Its totient is φ = 28253251306800.

The previous prime is 30121105145069. The next prime is 30121105145137. The reversal of 30121105145113 is 31154150112103.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30121105145113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121105145713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7848123445 + ... + 7848127282.

It is an arithmetic number, because the mean of its divisors is an integer number (4002543935640).

Almost surely, 2^{30121105145113} is an apocalyptic number.

It is an amenable number.

30121105145113 is a deficient number, since it is larger than the sum of its proper divisors (1899246340007).

30121105145113 is a wasteful number, since it uses less digits than its factorization.

30121105145113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15696250847.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 30121105145113 its reverse (31154150112103), we get a palindrome (61275255257216).

The spelling of 30121105145113 in words is "thirty trillion, one hundred twenty-one billion, one hundred five million, one hundred forty-five thousand, one hundred thirteen".