20130013212 has 24 divisors (see below), whose sum is σ = 48115642512. Its totient is φ = 6546345600.

The previous prime is 20130013199. The next prime is 20130013217. The reversal of 20130013212 is 21231003102.

It is a junction number, because it is equal to n+sod(n) for n = 20130013191 and 20130013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130013217) 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, 20456839 + ... + 20457822.

It is an arithmetic number, because the mean of its divisors is an integer number (2004818438).

Almost surely, 2^20130013212 is an apocalyptic number.

It is an amenable number.

20130013212 is an abundant number, since it is smaller than the sum of its proper divisors (27985629300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20130013212 is a wasteful number, since it uses less digits than its factorization.

20130013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40914709 (or 40914707 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20130013212 its reverse (21231003102), we get a palindrome (41361016314).

The spelling of 20130013212 in words is "twenty billion, one hundred thirty million, thirteen thousand, two hundred twelve".