30444243131 has 2 divisors, whose sum is σ = 30444243132. Its totient is φ = 30444243130.

The previous prime is 30444243121. The next prime is 30444243187. The reversal of 30444243131 is 13134244403.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30444243131 is a prime.

It is a super-2 number, since 2×30444243131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30444243094 and 30444243103.

It is not a weakly prime, because it can be changed into another prime (30444243121) 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 as a sum of consecutive naturals, namely, 15222121565 + 15222121566.

It is an arithmetic number, because the mean of its divisors is an integer number (15222121566).

Almost surely, 2^30444243131 is an apocalyptic number.

30444243131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30444243131 is an equidigital number, since it uses as much as digits as its factorization.

30444243131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 30444243131 its reverse (13134244403), we get a palindrome (43578487534).

The spelling of 30444243131 in words is "thirty billion, four hundred forty-four million, two hundred forty-three thousand, one hundred thirty-one".