30213223457 has 2 divisors, whose sum is σ = 30213223458. Its totient is φ = 30213223456.

The previous prime is 30213223451. The next prime is 30213223477. The reversal of 30213223457 is 75432231203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17284623841 + 12928599616 = 131471^2 + 113704^2 .

It is a cyclic number.

It is not a de Polignac number, because 30213223457 - 2¹⁶ = 30213157921 is a prime.

It is not a weakly prime, because it can be changed into another prime (30213223451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106611728 + 15106611729.

It is an arithmetic number, because the mean of its divisors is an integer number (15106611729).

Almost surely, 2^30213223457 is an apocalyptic number.

It is an amenable number.

30213223457 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213223457 is an equidigital number, since it uses as much as digits as its factorization.

30213223457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 30213223457 in words is "thirty billion, two hundred thirteen million, two hundred twenty-three thousand, four hundred fifty-seven".