20131230013012 has 12 divisors (see below), whose sum is σ = 35308115003700. Its totient is φ = 10043197154816.

The previous prime is 20131230013009. The next prime is 20131230013049. The reversal of 20131230013012 is 21031003213102.

It can be written as a sum of positive squares in 2 ways, for example, as 6316003343556 + 13815226669456 = 2513166^2 + 3716884^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5604460903 + ... + 5604464494.

It is an arithmetic number, because the mean of its divisors is an integer number (2942342916975).

Almost surely, 2^{20131230013012} is an apocalyptic number.

It is an amenable number.

20131230013012 is a deficient number, since it is larger than the sum of its proper divisors (15176884990688).

20131230013012 is a wasteful number, since it uses less digits than its factorization.

20131230013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11208925850 (or 11208925848 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20131230013012 its reverse (21031003213102), we get a palindrome (41162233226114).

The spelling of 20131230013012 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty million, thirteen thousand, twelve".