211112010232031 has 4 divisors (see below), whose sum is σ = 211112088258552. Its totient is φ = 211111932205512.

The previous prime is 211112010231923. The next prime is 211112010232103. The reversal of 211112010232031 is 130232010211112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211112010232031 is a prime.

It is a super-3 number, since 3×211112010232031³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211112010231994 and 211112010232012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112010432031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34803365 + ... + 40416558.

It is an arithmetic number, because the mean of its divisors is an integer number (52778022064638).

Almost surely, 2^{211112010232031} is an apocalyptic number.

211112010232031 is a deficient number, since it is larger than the sum of its proper divisors (78026521).

211112010232031 is an equidigital number, since it uses as much as digits as its factorization.

211112010232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78026520.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 211112010232031 its reverse (130232010211112), we get a palindrome (341344020443143).

The spelling of 211112010232031 in words is "two hundred eleven trillion, one hundred twelve billion, ten million, two hundred thirty-two thousand, thirty-one".