231020422 has 8 divisors (see below), whose sum is σ = 351702936. Its totient is φ = 113786112.

The previous prime is 231020417. The next prime is 231020437. The reversal of 231020422 is 224020132.

231020422 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 231020396 and 231020405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861883 + ... + 862150.

It is an arithmetic number, because the mean of its divisors is an integer number (43962867).

Almost surely, 2^231020422 is an apocalyptic number.

231020422 is a deficient number, since it is larger than the sum of its proper divisors (120682514).

231020422 is a wasteful number, since it uses less digits than its factorization.

231020422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724102.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 231020422 is about 15199.3559731983. The cubic root of 231020422 is about 613.5973249851.

Adding to 231020422 its reverse (224020132), we get a palindrome (455040554).

The spelling of 231020422 in words is "two hundred thirty-one million, twenty thousand, four hundred twenty-two".