30251440213 has 2 divisors, whose sum is σ = 30251440214. Its totient is φ = 30251440212.

The previous prime is 30251440199. The next prime is 30251440237. The reversal of 30251440213 is 31204415203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25682626564 + 4568813649 = 160258^2 + 67593^2 .

It is a cyclic number.

It is not a de Polignac number, because 30251440213 - 2²⁹ = 29714569301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30251443213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125720106 + 15125720107.

It is an arithmetic number, because the mean of its divisors is an integer number (15125720107).

Almost surely, 2^30251440213 is an apocalyptic number.

It is an amenable number.

30251440213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30251440213 is an equidigital number, since it uses as much as digits as its factorization.

30251440213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 30251440213 its reverse (31204415203), we get a palindrome (61455855416).

The spelling of 30251440213 in words is "thirty billion, two hundred fifty-one million, four hundred forty thousand, two hundred thirteen".