30144421433 has 4 divisors (see below), whose sum is σ = 34450767360. Its totient is φ = 25838075508.

The previous prime is 30144421429. The next prime is 30144421453. The reversal of 30144421433 is 33412444103.

It is a happy number.

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: 33412444103 = 23 ⋅1452714961.

It is not a de Polignac number, because 30144421433 - 2² = 30144421429 is a prime.

It is a super-2 number, since 2×30144421433² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30144421396 and 30144421405.

It is not an unprimeable number, because it can be changed into a prime (30144421453) 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, 2153172953 + ... + 2153172966.

It is an arithmetic number, because the mean of its divisors is an integer number (8612691840).

Almost surely, 2^30144421433 is an apocalyptic number.

It is an amenable number.

30144421433 is a deficient number, since it is larger than the sum of its proper divisors (4306345927).

30144421433 is an equidigital number, since it uses as much as digits as its factorization.

30144421433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306345926.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 30144421433 its reverse (33412444103), we get a palindrome (63556865536).

The spelling of 30144421433 in words is "thirty billion, one hundred forty-four million, four hundred twenty-one thousand, four hundred thirty-three".