231116422 has 4 divisors (see below), whose sum is σ = 346674636. Its totient is φ = 115558210.

The previous prime is 231116419. The next prime is 231116429. The reversal of 231116422 is 224611132.

231116422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 231116393 and 231116402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231116429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57779104 + ... + 57779107.

It is an arithmetic number, because the mean of its divisors is an integer number (86668659).

Almost surely, 2^231116422 is an apocalyptic number.

231116422 is a deficient number, since it is larger than the sum of its proper divisors (115558214).

231116422 is a wasteful number, since it uses less digits than its factorization.

231116422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115558213.

The product of its digits is 576, while the sum is 22.

The square root of 231116422 is about 15202.5136737317. The cubic root of 231116422 is about 613.6823061962.

Adding to 231116422 its reverse (224611132), we get a palindrome (455727554).

The spelling of 231116422 in words is "two hundred thirty-one million, one hundred sixteen thousand, four hundred twenty-two".