211123333031 has 8 divisors (see below), whose sum is σ = 227368426320. Its totient is φ = 194878930752.

The previous prime is 211123332949. The next prime is 211123333037. The reversal of 211123333031 is 130333321112.

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

It is a cyclic number.

It is not a de Polignac number, because 211123333031 - 2³⁰ = 210049591207 is a prime.

It is a super-2 number, since 2×211123333031² (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 = 211123332988 and 211123333006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211123333037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584915 + ... + 874283.

It is an arithmetic number, because the mean of its divisors is an integer number (28421053290).

Almost surely, 2^211123333031 is an apocalyptic number.

211123333031 is a deficient number, since it is larger than the sum of its proper divisors (16245093289).

211123333031 is a wasteful number, since it uses less digits than its factorization.

211123333031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345505.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 211123333031 its reverse (130333321112), we get a palindrome (341456654143).

The spelling of 211123333031 in words is "two hundred eleven billion, one hundred twenty-three million, three hundred thirty-three thousand, thirty-one".