213111331340 has 48 divisors (see below), whose sum is σ = 471149464800. Its totient is φ = 80747476992.

The previous prime is 213111331327. The next prime is 213111331343. The reversal of 213111331340 is 43133111312.

213111331340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213111331343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3287966 + ... + 3352154.

It is an arithmetic number, because the mean of its divisors is an integer number (9815613850).

Almost surely, 2^213111331340 is an apocalyptic number.

213111331340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213111331340 is an abundant number, since it is smaller than the sum of its proper divisors (258038133460).

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

213111331340 is a wasteful number, since it uses less digits than its factorization.

213111331340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72954 (or 72952 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 213111331340 its reverse (43133111312), we get a palindrome (256244442652).

The spelling of 213111331340 in words is "two hundred thirteen billion, one hundred eleven million, three hundred thirty-one thousand, three hundred forty".