30140043243021 has 24 divisors (see below), whose sum is σ = 43644493995960. Its totient is φ = 20043117190656.

The previous prime is 30140043242989. The next prime is 30140043243053. The reversal of 30140043243021 is 12034234004103.

30140043243021 is a `hidden beast` number, since 30 + 1 + 4 + 0 + 0 + 4 + 324 + 302 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (30140043242989) and next prime (30140043243053).

It can be written as a sum of positive squares in 4 ways, for example, as 9594320400900 + 20545722842121 = 3097470^2 + 4532739^2 .

It is not a de Polignac number, because 30140043243021 - 2⁵ = 30140043242989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140043203021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68663775 + ... + 69101331.

It is an arithmetic number, because the mean of its divisors is an integer number (1818520583165).

Almost surely, 2^{30140043243021} is an apocalyptic number.

It is an amenable number.

30140043243021 is a deficient number, since it is larger than the sum of its proper divisors (13504450752939).

30140043243021 is a wasteful number, since it uses less digits than its factorization.

30140043243021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456685 (or 456682 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 30140043243021 its reverse (12034234004103), we get a palindrome (42174277247124).

The spelling of 30140043243021 in words is "thirty trillion, one hundred forty billion, forty-three million, two hundred forty-three thousand, twenty-one".