30131441309 has 2 divisors, whose sum is σ = 30131441310. Its totient is φ = 30131441308.

The previous prime is 30131441239. The next prime is 30131441371. The reversal of 30131441309 is 90314413103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29096854084 + 1034587225 = 170578^2 + 32165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30131441309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30131441909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065720654 + 15065720655.

It is an arithmetic number, because the mean of its divisors is an integer number (15065720655).

Almost surely, 2^30131441309 is an apocalyptic number.

It is an amenable number.

30131441309 is a deficient number, since it is larger than the sum of its proper divisors (1).

30131441309 is an equidigital number, since it uses as much as digits as its factorization.

30131441309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 30131441309 in words is "thirty billion, one hundred thirty-one million, four hundred forty-one thousand, three hundred nine".