30161023 has 4 divisors (see below), whose sum is σ = 30655528. Its totient is φ = 29666520.

The previous prime is 30161011. The next prime is 30161029. The reversal of 30161023 is 32016103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30161023 - 2¹³ = 30152831 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 30160988 and 30161006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30161029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247161 + ... + 247282.

It is an arithmetic number, because the mean of its divisors is an integer number (7663882).

Almost surely, 2^30161023 is an apocalyptic number.

30161023 is a deficient number, since it is larger than the sum of its proper divisors (494505).

30161023 is an equidigital number, since it uses as much as digits as its factorization.

30161023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494504.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 30161023 is about 5491.9052249652. The cubic root of 30161023 is about 311.2781876914.

Adding to 30161023 its reverse (32016103), we get a palindrome (62177126).

The spelling of 30161023 in words is "thirty million, one hundred sixty-one thousand, twenty-three".