30331012133 has 2 divisors, whose sum is σ = 30331012134. Its totient is φ = 30331012132.

The previous prime is 30331012097. The next prime is 30331012147. The reversal of 30331012133 is 33121013303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21668428804 + 8662583329 = 147202^2 + 93073^2 .

It is a cyclic number.

It is not a de Polignac number, because 30331012133 - 2¹⁸ = 30330749989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30331012183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165506066 + 15165506067.

It is an arithmetic number, because the mean of its divisors is an integer number (15165506067).

Almost surely, 2^30331012133 is an apocalyptic number.

It is an amenable number.

30331012133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30331012133 is an equidigital number, since it uses as much as digits as its factorization.

30331012133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 30331012133 its reverse (33121013303), we get a palindrome (63452025436).

The spelling of 30331012133 in words is "thirty billion, three hundred thirty-one million, twelve thousand, one hundred thirty-three".