211030311121102 has 64 divisors (see below), whose sum is σ = 398151077011200. Its totient is φ = 82579482478080.

The previous prime is 211030311121081. The next prime is 211030311121111. The reversal of 211030311121102 is 201121113030112.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 211030311121102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511819488 + ... + 512231635.

It is an arithmetic number, because the mean of its divisors is an integer number (6221110578300).

Almost surely, 2^{211030311121102} is an apocalyptic number.

211030311121102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211030311121102 is a deficient number, since it is larger than the sum of its proper divisors (187120765890098).

211030311121102 is a wasteful number, since it uses less digits than its factorization.

211030311121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024051201.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 211030311121102 its reverse (201121113030112), we get a palindrome (412151424151214).

The spelling of 211030311121102 in words is "two hundred eleven trillion, thirty billion, three hundred eleven million, one hundred twenty-one thousand, one hundred two".