30131441173 has 2 divisors, whose sum is σ = 30131441174. Its totient is φ = 30131441172.

The previous prime is 30131441147. The next prime is 30131441239. The reversal of 30131441173 is 37114413103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28479262564 + 1652178609 = 168758^2 + 40647^2 .

It is a cyclic number.

It is not a de Polignac number, because 30131441173 - 2⁵ = 30131441141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30131441573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065720586 + 15065720587.

It is an arithmetic number, because the mean of its divisors is an integer number (15065720587).

Almost surely, 2^30131441173 is an apocalyptic number.

It is an amenable number.

30131441173 is a deficient number, since it is larger than the sum of its proper divisors (1).

30131441173 is an equidigital number, since it uses as much as digits as its factorization.

30131441173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 30131441173 its reverse (37114413103), we get a palindrome (67245854276).

The spelling of 30131441173 in words is "thirty billion, one hundred thirty-one million, four hundred forty-one thousand, one hundred seventy-three".