211403554400223 has 12 divisors (see below), whose sum is σ = 305526017644848. Its totient is φ = 140859397723200.

The previous prime is 211403554400209. The next prime is 211403554400299. The reversal of 211403554400223 is 322004455304112.

It is a happy number.

211403554400223 is a `hidden beast` number, since 2 + 1 + 1 + 40 + 3 + 554 + 40 + 0 + 2 + 23 = 666.

It is not a de Polignac number, because 211403554400223 - 2²² = 211403550205919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211403554402223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6358749978 + ... + 6358783223.

It is an arithmetic number, because the mean of its divisors is an integer number (25460501470404).

Almost surely, 2^{211403554400223} is an apocalyptic number.

211403554400223 is a deficient number, since it is larger than the sum of its proper divisors (94122463244625).

211403554400223 is a wasteful number, since it uses less digits than its factorization.

211403554400223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12717535054 (or 12717535051 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 211403554400223 in words is "two hundred eleven trillion, four hundred three billion, five hundred fifty-four million, four hundred thousand, two hundred twenty-three".