211112031 has 8 divisors (see below), whose sum is σ = 303135280. Its totient is φ = 129915072.

The previous prime is 211112023. The next prime is 211112053. The reversal of 211112031 is 130211112.

211112031 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 not a de Polignac number, because 211112031 - 2³ = 211112023 is a prime.

It is a super-2 number, since 2×211112031² = 89136579265889922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211111998 and 211112016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706526 + ... + 2706603.

It is an arithmetic number, because the mean of its divisors is an integer number (37891910).

Almost surely, 2^211112031 is an apocalyptic number.

211112031 is a deficient number, since it is larger than the sum of its proper divisors (92023249).

211112031 is a wasteful number, since it uses less digits than its factorization.

211112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413145.

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

The square root of 211112031 is about 14529.6948006488. The cubic root of 211112031 is about 595.4395274166.

Adding to 211112031 its reverse (130211112), we get a palindrome (341323143).

The spelling of 211112031 in words is "two hundred eleven million, one hundred twelve thousand, thirty-one".