213737323237312 has 28 divisors (see below), whose sum is σ = 484725715199920. Its totient is φ = 91601709958656.

The previous prime is 213737323237231. The next prime is 213737323237313. The reversal of 213737323237312 is 213732323737312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213737323237313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238546119237 + ... + 238546120132.

Almost surely, 2^{213737323237312} is an apocalyptic number.

It is an amenable number.

213737323237312 is an abundant number, since it is smaller than the sum of its proper divisors (270988391962608).

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

213737323237312 is an equidigital number, since it uses as much as digits as its factorization.

213737323237312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477092239388 (or 477092239378 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 49.

The spelling of 213737323237312 in words is "two hundred thirteen trillion, seven hundred thirty-seven billion, three hundred twenty-three million, two hundred thirty-seven thousand, three hundred twelve".