30001431329 has 2 divisors, whose sum is σ = 30001431330. Its totient is φ = 30001431328.

The previous prime is 30001431269. The next prime is 30001431349. The reversal of 30001431329 is 92313410003.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15240396304 + 14761035025 = 123452^2 + 121495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30001431329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30001431298 and 30001431307.

It is not a weakly prime, because it can be changed into another prime (30001431349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000715664 + 15000715665.

It is an arithmetic number, because the mean of its divisors is an integer number (15000715665).

Almost surely, 2^30001431329 is an apocalyptic number.

It is an amenable number.

30001431329 is a deficient number, since it is larger than the sum of its proper divisors (1).

30001431329 is an equidigital number, since it uses as much as digits as its factorization.

30001431329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 30001431329 in words is "thirty billion, one million, four hundred thirty-one thousand, three hundred twenty-nine".