20130420320312 has 16 divisors (see below), whose sum is σ = 37820178465000. Its totient is φ = 10045039396320.

The previous prime is 20130420320291. The next prime is 20130420320357. The reversal of 20130420320312 is 21302302403102.

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, 2521341239 + ... + 2521349222.

Almost surely, 2^{20130420320312} is an apocalyptic number.

It is an amenable number.

20130420320312 is a deficient number, since it is larger than the sum of its proper divisors (17689758144688).

20130420320312 is a wasteful number, since it uses less digits than its factorization.

20130420320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042690966 (or 5042690962 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20130420320312 its reverse (21302302403102), we get a palindrome (41432722723414).

The spelling of 20130420320312 in words is "twenty trillion, one hundred thirty billion, four hundred twenty million, three hundred twenty thousand, three hundred twelve".