20130213212 has 6 divisors (see below), whose sum is σ = 35227873128. Its totient is φ = 10065106604.

The previous prime is 20130213197. The next prime is 20130213217. The reversal of 20130213212 is 21231203102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130213217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2516276648 + ... + 2516276655.

It is an arithmetic number, because the mean of its divisors is an integer number (5871312188).

Almost surely, 2^20130213212 is an apocalyptic number.

It is an amenable number.

20130213212 is a deficient number, since it is larger than the sum of its proper divisors (15097659916).

20130213212 is a wasteful number, since it uses less digits than its factorization.

20130213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032553307 (or 5032553305 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20130213212 its reverse (21231203102), we get a palindrome (41361416314).

The spelling of 20130213212 in words is "twenty billion, one hundred thirty million, two hundred thirteen thousand, two hundred twelve".