30251040100243 has 4 divisors (see below), whose sum is σ = 30894679251360. Its totient is φ = 29607400949128.

The previous prime is 30251040100159. The next prime is 30251040100271. The reversal of 30251040100243 is 34200104015203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30251040100243 - 2²¹ = 30251038003091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30251040100543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321819575488 + ... + 321819575581.

It is an arithmetic number, because the mean of its divisors is an integer number (7723669812840).

Almost surely, 2^{30251040100243} is an apocalyptic number.

30251040100243 is a deficient number, since it is larger than the sum of its proper divisors (643639151117).

30251040100243 is an equidigital number, since it uses as much as digits as its factorization.

30251040100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643639151116.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 30251040100243 its reverse (34200104015203), we get a palindrome (64451144115446).

The spelling of 30251040100243 in words is "thirty trillion, two hundred fifty-one billion, forty million, one hundred thousand, two hundred forty-three".