20401123304 has 16 divisors (see below), whose sum is σ = 39141690720. Its totient is φ = 9963339120.

The previous prime is 20401123247. The next prime is 20401123331. The reversal of 20401123304 is 40332110402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29652452 + ... + 29653139.

It is an arithmetic number, because the mean of its divisors is an integer number (2446355670).

Almost surely, 2^20401123304 is an apocalyptic number.

It is an amenable number.

20401123304 is a deficient number, since it is larger than the sum of its proper divisors (18740567416).

20401123304 is a wasteful number, since it uses less digits than its factorization.

20401123304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59305640 (or 59305636 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20401123304 its reverse (40332110402), we get a palindrome (60733233706).

The spelling of 20401123304 in words is "twenty billion, four hundred one million, one hundred twenty-three thousand, three hundred four".