30331012057 has 2 divisors, whose sum is σ = 30331012058. Its totient is φ = 30331012056.

The previous prime is 30331012027. The next prime is 30331012073. The reversal of 30331012057 is 75021013303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24243735616 + 6087276441 = 155704^2 + 78021^2 .

It is a cyclic number.

It is not a de Polignac number, because 30331012057 - 2⁷ = 30331011929 is a prime.

It is not a weakly prime, because it can be changed into another prime (30331012027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165506028 + 15165506029.

It is an arithmetic number, because the mean of its divisors is an integer number (15165506029).

Almost surely, 2^30331012057 is an apocalyptic number.

It is an amenable number.

30331012057 is a deficient number, since it is larger than the sum of its proper divisors (1).

30331012057 is an equidigital number, since it uses as much as digits as its factorization.

30331012057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 25.

The spelling of 30331012057 in words is "thirty billion, three hundred thirty-one million, twelve thousand, fifty-seven".