30143111421 has 4 divisors (see below), whose sum is σ = 40190815232. Its totient is φ = 20095407612.

The previous prime is 30143111371. The next prime is 30143111429. The reversal of 30143111421 is 12411134103.

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: 12411134103 = 3 ⋅4137044701.

It is not a de Polignac number, because 30143111421 - 2¹⁹ = 30142587133 is a prime.

It is a super-2 number, since 2×30143111421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30143111429) 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, 5023851901 + ... + 5023851906.

It is an arithmetic number, because the mean of its divisors is an integer number (10047703808).

Almost surely, 2^30143111421 is an apocalyptic number.

It is an amenable number.

30143111421 is a deficient number, since it is larger than the sum of its proper divisors (10047703811).

30143111421 is a wasteful number, since it uses less digits than its factorization.

30143111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10047703810.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 30143111421 its reverse (12411134103), we get a palindrome (42554245524).

The spelling of 30143111421 in words is "thirty billion, one hundred forty-three million, one hundred eleven thousand, four hundred twenty-one".