213214240340 has 12 divisors (see below), whose sum is σ = 447749904756. Its totient is φ = 85285696128.

The previous prime is 213214240339. The next prime is 213214240373. The reversal of 213214240340 is 43042412312.

213214240340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 165157708816 + 48056531524 = 406396^2 + 219218^2 .

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, 5330355989 + ... + 5330356028.

It is an arithmetic number, because the mean of its divisors is an integer number (37312492063).

Almost surely, 2^213214240340 is an apocalyptic number.

213214240340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213214240340 is an abundant number, since it is smaller than the sum of its proper divisors (234535664416).

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

213214240340 is a wasteful number, since it uses less digits than its factorization.

213214240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10660712026 (or 10660712024 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 213214240340 its reverse (43042412312), we get a palindrome (256256652652).

The spelling of 213214240340 in words is "two hundred thirteen billion, two hundred fourteen million, two hundred forty thousand, three hundred forty".