30700023 has 4 divisors (see below), whose sum is σ = 40933368. Its totient is φ = 20466680.

The previous prime is 30699997. The next prime is 30700037. The reversal of 30700023 is 32000703.

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 30700023 - 2¹⁰ = 30698999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30699975 and 30700011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30700063) 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, 5116668 + ... + 5116673.

It is an arithmetic number, because the mean of its divisors is an integer number (10233342).

Almost surely, 2^30700023 is an apocalyptic number.

30700023 is a deficient number, since it is larger than the sum of its proper divisors (10233345).

30700023 is a wasteful number, since it uses less digits than its factorization.

30700023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10233344.

The product of its (nonzero) digits is 126, while the sum is 15.

The square root of 30700023 is about 5540.7601464059. The cubic root of 30700023 is about 313.1215082817.

Adding to 30700023 its reverse (32000703), we get a palindrome (62700726).

The spelling of 30700023 in words is "thirty million, seven hundred thousand, twenty-three".