30211110203161 has 2 divisors, whose sum is σ = 30211110203162. Its totient is φ = 30211110203160.

The previous prime is 30211110203123. The next prime is 30211110203201. The reversal of 30211110203161 is 16130201111203.

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., 30205532353936 + 5577849225 = 5495956^2 + 74685^2 .

It is an emirp because it is prime and its reverse (16130201111203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30211110203161 - 2²⁵ = 30211076648729 is a prime.

It is a super-2 number, since 2×30211110203161² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30211110203861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105555101580 + 15105555101581.

It is an arithmetic number, because the mean of its divisors is an integer number (15105555101581).

Almost surely, 2^{30211110203161} is an apocalyptic number.

It is an amenable number.

30211110203161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211110203161 is an equidigital number, since it uses as much as digits as its factorization.

30211110203161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 30211110203161 its reverse (16130201111203), we get a palindrome (46341311314364).

The spelling of 30211110203161 in words is "thirty trillion, two hundred eleven billion, one hundred ten million, two hundred three thousand, one hundred sixty-one".