30131120443 has 16 divisors (see below), whose sum is σ = 31036515840. Its totient is φ = 29237176800.

The previous prime is 30131120429. The next prime is 30131120479. The reversal of 30131120443 is 34402113103.

It is a cyclic number.

It is not a de Polignac number, because 30131120443 - 2¹³ = 30131112251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30131120413) 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, 9978988 + ... + 9982006.

It is an arithmetic number, because the mean of its divisors is an integer number (1939782240).

Almost surely, 2^30131120443 is an apocalyptic number.

30131120443 is a deficient number, since it is larger than the sum of its proper divisors (905395397).

30131120443 is a wasteful number, since it uses less digits than its factorization.

30131120443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 30131120443 its reverse (34402113103), we get a palindrome (64533233546).

The spelling of 30131120443 in words is "thirty billion, one hundred thirty-one million, one hundred twenty thousand, four hundred forty-three".