30144021999 has 16 divisors (see below), whose sum is σ = 49467113472. Its totient is φ = 15900143328.

The previous prime is 30144021997. The next prime is 30144022001. The reversal of 30144021999 is 99912044103.

It is an interprime number because it is at equal distance from previous prime (30144021997) and next prime (30144022001).

It is not a de Polignac number, because 30144021999 - 2¹ = 30144021997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30144021999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30144021991) 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 15 ways as a sum of consecutive naturals, for example, 55208559 + ... + 55209104.

It is an arithmetic number, because the mean of its divisors is an integer number (3091694592).

Almost surely, 2^30144021999 is an apocalyptic number.

30144021999 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

30144021999 is a deficient number, since it is larger than the sum of its proper divisors (19323091473).

30144021999 is a wasteful number, since it uses less digits than its factorization.

30144021999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110417686.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 30144021999 in words is "thirty billion, one hundred forty-four million, twenty-one thousand, nine hundred ninety-nine".