30312121141 has 4 divisors (see below), whose sum is σ = 30314484000. Its totient is φ = 30309758284.

The previous prime is 30312121123. The next prime is 30312121187. The reversal of 30312121141 is 14112121303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14112121303 = 7 ⋅2016017329.

It is a cyclic number.

It is not a de Polignac number, because 30312121141 - 2²³ = 30303732533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312121121) 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, 1162081 + ... + 1187878.

It is an arithmetic number, because the mean of its divisors is an integer number (7578621000).

Almost surely, 2^30312121141 is an apocalyptic number.

It is an amenable number.

30312121141 is a deficient number, since it is larger than the sum of its proper divisors (2362859).

30312121141 is a wasteful number, since it uses less digits than its factorization.

30312121141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362858.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 30312121141 its reverse (14112121303), we get a palindrome (44424242444).

The spelling of 30312121141 in words is "thirty billion, three hundred twelve million, one hundred twenty-one thousand, one hundred forty-one".