30100120231121 has 4 divisors (see below), whose sum is σ = 31870715538852. Its totient is φ = 28329524923392.

The previous prime is 30100120231109. The next prime is 30100120231123. The reversal of 30100120231121 is 12113202100103.

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 14752021178896 + 15348099052225 = 3840836^2 + 3917665^2 .

It is a cyclic number.

It is not a de Polignac number, because 30100120231121 - 2¹⁴ = 30100120214737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1770595307713 = 30100120231121 / (3 + 0 + 1 + 0 + 0 + 1 + 2 + 0 + 2 + 3 + 1 + 1 + 2 + 1).

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 30100120231121.

It is not an unprimeable number, because it can be changed into a prime (30100120231123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885297653840 + ... + 885297653873.

It is an arithmetic number, because the mean of its divisors is an integer number (7967678884713).

Almost surely, 2^{30100120231121} is an apocalyptic number.

It is an amenable number.

30100120231121 is a deficient number, since it is larger than the sum of its proper divisors (1770595307731).

30100120231121 is a wasteful number, since it uses less digits than its factorization.

30100120231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770595307730.

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

Adding to 30100120231121 its reverse (12113202100103), we get a palindrome (42213322331224).

The spelling of 30100120231121 in words is "thirty trillion, one hundred billion, one hundred twenty million, two hundred thirty-one thousand, one hundred twenty-one".