20211131230 has 32 divisors (see below), whose sum is σ = 37374416640. Its totient is φ = 7863609600.

The previous prime is 20211131219. The next prime is 20211131233. The reversal of 20211131230 is 3213111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211131233) 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 15 ways as a sum of consecutive naturals, for example, 1743955 + ... + 1755505.

It is an arithmetic number, because the mean of its divisors is an integer number (1167950520).

Almost surely, 2^20211131230 is an apocalyptic number.

20211131230 is a deficient number, since it is larger than the sum of its proper divisors (17163285410).

20211131230 is a wasteful number, since it uses less digits than its factorization.

20211131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16324.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20211131230 its reverse (3213111202), we get a palindrome (23424242432).

The spelling of 20211131230 in words is "twenty billion, two hundred eleven million, one hundred thirty-one thousand, two hundred thirty".