211123213130 has 64 divisors (see below), whose sum is σ = 399314589696. Its totient is φ = 80269056000.

The previous prime is 211123213127. The next prime is 211123213153. The reversal of 211123213130 is 31312321112.

It is a happy number.

211123213130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211123213130² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5434475 + ... + 5473185.

It is an arithmetic number, because the mean of its divisors is an integer number (6239290464).

Almost surely, 2^211123213130 is an apocalyptic number.

211123213130 is a deficient number, since it is larger than the sum of its proper divisors (188191376566).

211123213130 is a wasteful number, since it uses less digits than its factorization.

211123213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39063.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211123213130 its reverse (31312321112), we get a palindrome (242435534242).

The spelling of 211123213130 in words is "two hundred eleven billion, one hundred twenty-three million, two hundred thirteen thousand, one hundred thirty".