20130400320044 has 24 divisors (see below), whose sum is σ = 40266496438560. Its totient is φ = 8626093894656.

The previous prime is 20130400320031. The next prime is 20130400320059. The reversal of 20130400320044 is 44002300403102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50653877 + ... + 51049740.

It is an arithmetic number, because the mean of its divisors is an integer number (1677770684940).

Almost surely, 2^{20130400320044} is an apocalyptic number.

It is an amenable number.

20130400320044 is an abundant number, since it is smaller than the sum of its proper divisors (20136096118516).

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

20130400320044 is a wasteful number, since it uses less digits than its factorization.

20130400320044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101710697 (or 101710695 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20130400320044 its reverse (44002300403102), we get a palindrome (64132700723146).

The spelling of 20130400320044 in words is "twenty trillion, one hundred thirty billion, four hundred million, three hundred twenty thousand, forty-four".