211312113203400 has 192 divisors, whose sum is σ = 752230680940800. Its totient is φ = 48531011616000.

The previous prime is 211312113203339. The next prime is 211312113203423. The reversal of 211312113203400 is 4302311213112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 842426886 + ... + 842677685.

It is an arithmetic number, because the mean of its divisors is an integer number (3917868129900).

Almost surely, 2^{211312113203400} is an apocalyptic number.

211312113203400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211312113203400 is an abundant number, since it is smaller than the sum of its proper divisors (540918567737400).

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

211312113203400 is a wasteful number, since it uses less digits than its factorization.

211312113203400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685104620 (or 1685104611 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211312113203400 its reverse (4302311213112), we get a palindrome (215614424416512).

The spelling of 211312113203400 in words is "two hundred eleven trillion, three hundred twelve billion, one hundred thirteen million, two hundred three thousand, four hundred".