20130400224344 has 32 divisors (see below), whose sum is σ = 38554350045120. Its totient is φ = 9849315492096.

The previous prime is 20130400224343. The next prime is 20130400224353. The reversal of 20130400224344 is 44342200403102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130400224343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561549 + ... + 6842684.

It is an arithmetic number, because the mean of its divisors is an integer number (1204823438910).

Almost surely, 2^{20130400224344} is an apocalyptic number.

It is an amenable number.

20130400224344 is a deficient number, since it is larger than the sum of its proper divisors (18423949820776).

20130400224344 is a wasteful number, since it uses less digits than its factorization.

20130400224344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9409979 (or 9409975 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20130400224344 its reverse (44342200403102), we get a palindrome (64472600627446).

The spelling of 20130400224344 in words is "twenty trillion, one hundred thirty billion, four hundred million, two hundred twenty-four thousand, three hundred forty-four".