231132112131230 has 32 divisors (see below), whose sum is σ = 421949286460800. Its totient is φ = 91142765955072.

The previous prime is 231132112131203. The next prime is 231132112131251. The reversal of 231132112131230 is 32131211231132.

It is a self number, because there is not a number n which added to its sum of digits gives 231132112131230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223505795 + ... + 224537534.

It is an arithmetic number, because the mean of its divisors is an integer number (13185915201900).

Almost surely, 2^{231132112131230} is an apocalyptic number.

231132112131230 is a deficient number, since it is larger than the sum of its proper divisors (190817174329570).

231132112131230 is a wasteful number, since it uses less digits than its factorization.

231132112131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448044068.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 231132112131230 its reverse (32131211231132), we get a palindrome (263263323362362).

The spelling of 231132112131230 in words is "two hundred thirty-one trillion, one hundred thirty-two billion, one hundred twelve million, one hundred thirty-one thousand, two hundred thirty".