23030031204 has 18 divisors (see below), whose sum is σ = 58214801190. Its totient is φ = 7676677056.

The previous prime is 23030031191. The next prime is 23030031209. The reversal of 23030031204 is 40213003032.

It can be written as a sum of positive squares in only one way, i.e., 19057250304 + 3972780900 = 138048^2 + 63030^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23030031209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319861509 + ... + 319861580.

Almost surely, 2^23030031204 is an apocalyptic number.

It is an amenable number.

23030031204 is an abundant number, since it is smaller than the sum of its proper divisors (35184769986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23030031204 is a wasteful number, since it uses less digits than its factorization.

23030031204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639723099 (or 639723094 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23030031204 its reverse (40213003032), we get a palindrome (63243034236).

The spelling of 23030031204 in words is "twenty-three billion, thirty million, thirty-one thousand, two hundred four".