23030220040 has 16 divisors (see below), whose sum is σ = 51817995180. Its totient is φ = 9212088000.

The previous prime is 23030220029. The next prime is 23030220047. The reversal of 23030220040 is 4002203032.

It can be written as a sum of positive squares in 2 ways, for example, as 21783988836 + 1246231204 = 147594^2 + 35302^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23030219996 and 23030220023.

It is not an unprimeable number, because it can be changed into a prime (23030220047) 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, 287877711 + ... + 287877790.

Almost surely, 2^23030220040 is an apocalyptic number.

23030220040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030220040 is an abundant number, since it is smaller than the sum of its proper divisors (28787775140).

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

23030220040 is a wasteful number, since it uses less digits than its factorization.

23030220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575755512 (or 575755508 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 23030220040 its reverse (4002203032), we get a palindrome (27032423072).

The spelling of 23030220040 in words is "twenty-three billion, thirty million, two hundred twenty thousand, forty".