30161123 has 2 divisors, whose sum is σ = 30161124. Its totient is φ = 30161122.

The previous prime is 30161107. The next prime is 30161129. The reversal of 30161123 is 32116103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30161123 - 2⁴ = 30161107 is a prime.

It is a super-2 number, since 2×30161123² = 1819386681242258, which contains 22 as substring.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (30161129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15080561 + 15080562.

It is an arithmetic number, because the mean of its divisors is an integer number (15080562).

Almost surely, 2^30161123 is an apocalyptic number.

30161123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30161123 is an equidigital number, since it uses as much as digits as its factorization.

30161123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 30161123 is about 5491.9143292663. The cubic root of 30161123 is about 311.2785317092.

Adding to 30161123 its reverse (32116103), we get a palindrome (62277226).

The spelling of 30161123 in words is "thirty million, one hundred sixty-one thousand, one hundred twenty-three".