30211117 has 2 divisors, whose sum is σ = 30211118. Its totient is φ = 30211116.

The previous prime is 30211109. The next prime is 30211147. The reversal of 30211117 is 71111203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30096196 + 114921 = 5486^2 + 339^2 .

It is a cyclic number.

It is not a de Polignac number, because 30211117 - 2³ = 30211109 is a prime.

It is a super-3 number, since 3×30211117³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30211117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30211147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105558 + 15105559.

It is an arithmetic number, because the mean of its divisors is an integer number (15105559).

Almost surely, 2^30211117 is an apocalyptic number.

It is an amenable number.

30211117 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211117 is an equidigital number, since it uses as much as digits as its factorization.

30211117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 30211117 is about 5496.4640451840. The cubic root of 30211117 is about 311.4504248275.

The spelling of 30211117 in words is "thirty million, two hundred eleven thousand, one hundred seventeen".