211303012031 has 8 divisors (see below), whose sum is σ = 226883765664. Its totient is φ = 196072387840.

The previous prime is 211303012027. The next prime is 211303012043. The reversal of 211303012031 is 130210303112.

211303012031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211303012031 - 2² = 211303012027 is a prime.

It is a super-2 number, since 2×211303012031² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211303012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87531110 + ... + 87533523.

It is an arithmetic number, because the mean of its divisors is an integer number (28360470708).

Almost surely, 2^211303012031 is an apocalyptic number.

211303012031 is a deficient number, since it is larger than the sum of its proper divisors (15580753633).

211303012031 is a wasteful number, since it uses less digits than its factorization.

211303012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175064721.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 211303012031 its reverse (130210303112), we get a palindrome (341513315143).

The spelling of 211303012031 in words is "two hundred eleven billion, three hundred three million, twelve thousand, thirty-one".