30101102203121 has 4 divisors (see below), whose sum is σ = 30232548064500. Its totient is φ = 29969656341744.

The previous prime is 30101102203103. The next prime is 30101102203163. The reversal of 30101102203121 is 12130220110103.

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 17460489030625 + 12640613172496 = 4178575^2 + 3555364^2 .

It is a cyclic number.

It is not a de Polignac number, because 30101102203121 - 2³⁰ = 30100028461297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30101102203121.

It is not an unprimeable number, because it can be changed into a prime (30101102200121) 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, 65722930346 + ... + 65722930803.

It is an arithmetic number, because the mean of its divisors is an integer number (7558137016125).

Almost surely, 2^{30101102203121} is an apocalyptic number.

It is an amenable number.

30101102203121 is a deficient number, since it is larger than the sum of its proper divisors (131445861379).

30101102203121 is a wasteful number, since it uses less digits than its factorization.

30101102203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131445861378.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 30101102203121 its reverse (12130220110103), we get a palindrome (42231322313224).

The spelling of 30101102203121 in words is "thirty trillion, one hundred one billion, one hundred two million, two hundred three thousand, one hundred twenty-one".