213112056332440 has 32 divisors (see below), whose sum is σ = 479502545096160. Its totient is φ = 85244748160000.

The previous prime is 213112056332411. The next prime is 213112056332449. The reversal of 213112056332440 is 44233650211312.

It is a self number, because there is not a number n which added to its sum of digits gives 213112056332440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213112056332449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80794440 + ... + 83390440.

It is an arithmetic number, because the mean of its divisors is an integer number (14984454534255).

Almost surely, 2^{213112056332440} is an apocalyptic number.

213112056332440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213112056332440 is an abundant number, since it is smaller than the sum of its proper divisors (266390488763720).

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

213112056332440 is a wasteful number, since it uses less digits than its factorization.

213112056332440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648323 (or 4648319 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 213112056332440 in words is "two hundred thirteen trillion, one hundred twelve billion, fifty-six million, three hundred thirty-two thousand, four hundred forty".