211112031000 has 128 divisors (see below), whose sum is σ = 709336555200. Its totient is φ = 51966028800.

The previous prime is 211112030939. The next prime is 211112031001. The reversal of 211112031000 is 130211112.

211112031000 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211112031000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112031001) 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 31 ways as a sum of consecutive naturals, for example, 2667565 + ... + 2745564.

Almost surely, 2^211112031000 is an apocalyptic number.

211112031000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211112031000 is an abundant number, since it is smaller than the sum of its proper divisors (498224524200).

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

211112031000 is a wasteful number, since it uses less digits than its factorization.

211112031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413166 (or 5413152 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 211112031000 its reverse (130211112), we get a palindrome (211242242112).

The spelling of 211112031000 in words is "two hundred eleven billion, one hundred twelve million, thirty-one thousand".