20001223030 has 16 divisors (see below), whose sum is σ = 36054315504. Its totient is φ = 7988908320.

The previous prime is 20001223019. The next prime is 20001223087. The reversal of 20001223030 is 3032210002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20001223030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440357 + ... + 1454176.

It is an arithmetic number, because the mean of its divisors is an integer number (2253394719).

Almost surely, 2^20001223030 is an apocalyptic number.

20001223030 is a deficient number, since it is larger than the sum of its proper divisors (16053092474).

20001223030 is a wasteful number, since it uses less digits than its factorization.

20001223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895231.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20001223030 its reverse (3032210002), we get a palindrome (23033433032).

The spelling of 20001223030 in words is "twenty billion, one million, two hundred twenty-three thousand, thirty".