211112101031 has 8 divisors (see below), whose sum is σ = 229906005840. Its totient is φ = 192683126592.

The previous prime is 211112101007. The next prime is 211112101033. The reversal of 211112101031 is 130101211112.

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 211112101031 - 2⁶ = 211112100967 is a prime.

It is a super-2 number, since 2×211112101031² (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 = 211112100997 and 211112101015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112101033) 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, 91231385 + ... + 91233698.

It is an arithmetic number, because the mean of its divisors is an integer number (28738250730).

Almost surely, 2^211112101031 is an apocalyptic number.

211112101031 is a deficient number, since it is larger than the sum of its proper divisors (18793904809).

211112101031 is a wasteful number, since it uses less digits than its factorization.

211112101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182465185.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 211112101031 its reverse (130101211112), we get a palindrome (341213312143).

The spelling of 211112101031 in words is "two hundred eleven billion, one hundred twelve million, one hundred one thousand, thirty-one".