30211223513 has 2 divisors, whose sum is σ = 30211223514. Its totient is φ = 30211223512.

The previous prime is 30211223503. The next prime is 30211223563. The reversal of 30211223513 is 31532211203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23310266329 + 6900957184 = 152677^2 + 83072^2 .

It is a cyclic number.

It is not a de Polignac number, because 30211223513 - 2¹⁸ = 30210961369 is a prime.

It is a super-2 number, since 2×30211223513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30211223503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105611756 + 15105611757.

It is an arithmetic number, because the mean of its divisors is an integer number (15105611757).

Almost surely, 2^30211223513 is an apocalyptic number.

It is an amenable number.

30211223513 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211223513 is an equidigital number, since it uses as much as digits as its factorization.

30211223513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 30211223513 its reverse (31532211203), we get a palindrome (61743434716).

The spelling of 30211223513 in words is "thirty billion, two hundred eleven million, two hundred twenty-three thousand, five hundred thirteen".