211231130030 has 64 divisors (see below), whose sum is σ = 417337920000. Its totient is φ = 76619010048.

The previous prime is 211231130003. The next prime is 211231130087. The reversal of 211231130030 is 30031132112.

211231130030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 211231129990 and 211231130008.

It is a congruent number.

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, 2316746 + ... + 2406194.

It is an arithmetic number, because the mean of its divisors is an integer number (6520905000).

Almost surely, 2^211231130030 is an apocalyptic number.

211231130030 is a deficient number, since it is larger than the sum of its proper divisors (206106789970).

211231130030 is a wasteful number, since it uses less digits than its factorization.

211231130030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89981.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 211231130030 its reverse (30031132112), we get a palindrome (241262262142).

The spelling of 211231130030 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred thirty thousand, thirty".