23030030040 has 64 divisors (see below), whose sum is σ = 69553836000. Its totient is φ = 6100119552.

The previous prime is 23030030027. The next prime is 23030030047. The reversal of 23030030040 is 4003003032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030030047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626137 + ... + 661896.

Almost surely, 2^23030030040 is an apocalyptic number.

23030030040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030030040 is an abundant number, since it is smaller than the sum of its proper divisors (46523805960).

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

23030030040 is a wasteful number, since it uses less digits than its factorization.

23030030040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288196 (or 1288192 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 23030030040 its reverse (4003003032), we get a palindrome (27033033072).

The spelling of 23030030040 in words is "twenty-three billion, thirty million, thirty thousand, forty".