20131123103230 has 16 divisors (see below), whose sum is σ = 36354054234960. Its totient is φ = 8026219763712.

The previous prime is 20131123103219. The next prime is 20131123103237. The reversal of 20131123103230 is 3230132113102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131123103237) 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, 3278681475 + ... + 3278687614.

It is an arithmetic number, because the mean of its divisors is an integer number (2272128389685).

Almost surely, 2^{20131123103230} is an apocalyptic number.

20131123103230 is a deficient number, since it is larger than the sum of its proper divisors (16222931131730).

20131123103230 is a wasteful number, since it uses less digits than its factorization.

20131123103230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557369403.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20131123103230 its reverse (3230132113102), we get a palindrome (23361255216332).

The spelling of 20131123103230 in words is "twenty trillion, one hundred thirty-one billion, one hundred twenty-three million, one hundred three thousand, two hundred thirty".