211130031031 has 4 divisors (see below), whose sum is σ = 214281225592. Its totient is φ = 207978836472.

The previous prime is 211130030999. The next prime is 211130031083. The reversal of 211130031031 is 130130031112.

211130031031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 211130031031 - 2⁵ = 211130030999 is a prime.

It is a super-2 number, since 2×211130031031² (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 = 211130030996 and 211130031014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211130031631) 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 3 ways as a sum of consecutive naturals, for example, 1575597180 + ... + 1575597313.

It is an arithmetic number, because the mean of its divisors is an integer number (53570306398).

Almost surely, 2^211130031031 is an apocalyptic number.

211130031031 is a deficient number, since it is larger than the sum of its proper divisors (3151194561).

211130031031 is an equidigital number, since it uses as much as digits as its factorization.

211130031031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151194560.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 211130031031 its reverse (130130031112), we get a palindrome (341260062143).

The spelling of 211130031031 in words is "two hundred eleven billion, one hundred thirty million, thirty-one thousand, thirty-one".