213412261340 has 12 divisors (see below), whose sum is σ = 448165748856. Its totient is φ = 85364904528.

The previous prime is 213412261219. The next prime is 213412261369. The reversal of 213412261340 is 43162214312.

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, 5335306514 + ... + 5335306553.

It is an arithmetic number, because the mean of its divisors is an integer number (37347145738).

Almost surely, 2^213412261340 is an apocalyptic number.

213412261340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213412261340 is an abundant number, since it is smaller than the sum of its proper divisors (234753487516).

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

213412261340 is a wasteful number, since it uses less digits than its factorization.

213412261340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10670613076 (or 10670613074 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 213412261340 its reverse (43162214312), we get a palindrome (256574475652).

The spelling of 213412261340 in words is "two hundred thirteen billion, four hundred twelve million, two hundred sixty-one thousand, three hundred forty".