30144429973 has 4 divisors (see below), whose sum is σ = 34450777120. Its totient is φ = 25838082828.

The previous prime is 30144429961. The next prime is 30144430013. The reversal of 30144429973 is 37992444103.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30144429973 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 (30144429923) 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, 2153173563 + ... + 2153173576.

It is an arithmetic number, because the mean of its divisors is an integer number (8612694280).

Almost surely, 2^30144429973 is an apocalyptic number.

It is an amenable number.

30144429973 is a deficient number, since it is larger than the sum of its proper divisors (4306347147).

30144429973 is an equidigital number, since it uses as much as digits as its factorization.

30144429973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306347146.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 30144429973 in words is "thirty billion, one hundred forty-four million, four hundred twenty-nine thousand, nine hundred seventy-three".