211320203331 has 8 divisors (see below), whose sum is σ = 281763034960. Its totient is φ = 140878753632.

The previous prime is 211320203273. The next prime is 211320203363. The reversal of 211320203331 is 133302023112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211320203331 - 2¹⁷ = 211320072259 is a prime.

It is a super-2 number, since 2×211320203331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211320203298 and 211320203307.

It is not an unprimeable number, because it can be changed into a prime (211320203531) 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, 89601 + ... + 656253.

It is an arithmetic number, because the mean of its divisors is an integer number (35220379370).

Almost surely, 2^211320203331 is an apocalyptic number.

211320203331 is a deficient number, since it is larger than the sum of its proper divisors (70442831629).

211320203331 is a wasteful number, since it uses less digits than its factorization.

211320203331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690965.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211320203331 its reverse (133302023112), we get a palindrome (344622226443).

The spelling of 211320203331 in words is "two hundred eleven billion, three hundred twenty million, two hundred three thousand, three hundred thirty-one".