213051313212 has 24 divisors (see below), whose sum is σ = 497128800000. Its totient is φ = 71015808816.

The previous prime is 213051313201. The next prime is 213051313313. The reversal of 213051313212 is 212313150312.

It is a happy number.

It is a super-2 number, since 2×213051313212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711789 + ... + 965787.

It is an arithmetic number, because the mean of its divisors is an integer number (20713700000).

Almost surely, 2^213051313212 is an apocalyptic number.

It is an amenable number.

213051313212 is an abundant number, since it is smaller than the sum of its proper divisors (284077486788).

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

213051313212 is a wasteful number, since it uses less digits than its factorization.

213051313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323905 (or 323903 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 213051313212 its reverse (212313150312), we get a palindrome (425364463524).

The spelling of 213051313212 in words is "two hundred thirteen billion, fifty-one million, three hundred thirteen thousand, two hundred twelve".