213440044312 has 32 divisors (see below), whose sum is σ = 451636462800. Its totient is φ = 93672745600.

The previous prime is 213440044309. The next prime is 213440044361.

213440044312 is nontrivially palindromic in base 10.

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, 41815639 + ... + 41820742.

Almost surely, 2^213440044312 is an apocalyptic number.

213440044312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213440044312 is an abundant number, since it is smaller than the sum of its proper divisors (238196418488).

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

213440044312 is a wasteful number, since it uses less digits than its factorization.

213440044312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83636427 (or 83636423 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 2134400 and 44312, that added together give a palindrome (2178712).

The spelling of 213440044312 in words is "two hundred thirteen billion, four hundred forty million, forty-four thousand, three hundred twelve".