231030220112 has 10 divisors (see below), whose sum is σ = 447621051498. Its totient is φ = 115515110048.

The previous prime is 231030220079. The next prime is 231030220139. The reversal of 231030220112 is 211022030132.

231030220112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 214372704016 + 16657516096 = 463004^2 + 129064^2 .

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 as a sum of consecutive naturals, namely, 7219694363 + ... + 7219694394.

Almost surely, 2^231030220112 is an apocalyptic number.

It is an amenable number.

231030220112 is a deficient number, since it is larger than the sum of its proper divisors (216590831386).

231030220112 is a wasteful number, since it uses less digits than its factorization.

231030220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14439388765 (or 14439388759 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 231030220112 its reverse (211022030132), we get a palindrome (442052250244).

The spelling of 231030220112 in words is "two hundred thirty-one billion, thirty million, two hundred twenty thousand, one hundred twelve".