20130232213144 has 32 divisors (see below), whose sum is σ = 39422288344320. Its totient is φ = 9618445352736.

The previous prime is 20130232213141. The next prime is 20130232213163. The reversal of 20130232213144 is 44131223203102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130232213141) 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, 51264162 + ... + 51655345.

It is an arithmetic number, because the mean of its divisors is an integer number (1231946510760).

Almost surely, 2^{20130232213144} is an apocalyptic number.

It is an amenable number.

20130232213144 is a deficient number, since it is larger than the sum of its proper divisors (19292056131176).

20130232213144 is a wasteful number, since it uses less digits than its factorization.

20130232213144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102920599 (or 102920595 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20130232213144 its reverse (44131223203102), we get a palindrome (64261455416246).

The spelling of 20130232213144 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred forty-four".