20120113231303 has 8 divisors (see below), whose sum is σ = 20133880809840. Its totient is φ = 20106346877760.

The previous prime is 20120113231279. The next prime is 20120113231307. The reversal of 20120113231303 is 30313231102102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120113231303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120113231307) 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, 33854233 + ... + 34443421.

It is an arithmetic number, because the mean of its divisors is an integer number (2516735101230).

Almost surely, 2^{20120113231303} is an apocalyptic number.

20120113231303 is a deficient number, since it is larger than the sum of its proper divisors (13767578537).

20120113231303 is a wasteful number, since it uses less digits than its factorization.

20120113231303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612497.

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

Adding to 20120113231303 its reverse (30313231102102), we get a palindrome (50433344333405).

The spelling of 20120113231303 in words is "twenty trillion, one hundred twenty billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred three".