20400230030 has 16 divisors (see below), whose sum is σ = 36795209904. Its totient is φ = 8143470720.

The previous prime is 20400229987. The next prime is 20400230063. The reversal of 20400230030 is 3003200402.

It is a junction number, because it is equal to n+sod(n) for n = 20400229987 and 20400230014.

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, 2072507 + ... + 2082326.

It is an arithmetic number, because the mean of its divisors is an integer number (2299700619).

Almost surely, 2^20400230030 is an apocalyptic number.

20400230030 is a deficient number, since it is larger than the sum of its proper divisors (16394979874).

20400230030 is a wasteful number, since it uses less digits than its factorization.

20400230030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155331.

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 20400230030 its reverse (3003200402), we get a palindrome (23403430432).

The spelling of 20400230030 in words is "twenty billion, four hundred million, two hundred thirty thousand, thirty".