30143302243 has 4 divisors (see below), whose sum is σ = 30143997000. Its totient is φ = 30142607488.

The previous prime is 30143302207. The next prime is 30143302249. The reversal of 30143302243 is 34220334103.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30143302243 is a prime.

It is a super-2 number, since 2×30143302243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30143302249) 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, 277630 + ... + 370627.

It is an arithmetic number, because the mean of its divisors is an integer number (7535999250).

Almost surely, 2^30143302243 is an apocalyptic number.

30143302243 is a deficient number, since it is larger than the sum of its proper divisors (694757).

30143302243 is an equidigital number, since it uses as much as digits as its factorization.

30143302243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694756.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 30143302243 its reverse (34220334103), we get a palindrome (64363636346).

The spelling of 30143302243 in words is "thirty billion, one hundred forty-three million, three hundred two thousand, two hundred forty-three".