1231227042 has 8 divisors (see below), whose sum is σ = 2462454096. Its totient is φ = 410409012.

The previous prime is 1231227017. The next prime is 1231227043. The reversal of 1231227042 is 2407221321.

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

1231227042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1231227043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102602248 + ... + 102602259.

It is an arithmetic number, because the mean of its divisors is an integer number (307806762).

Almost surely, 2^1231227042 is an apocalyptic number.

1231227042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231227042 is a wasteful number, since it uses less digits than its factorization.

1231227042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205204512.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1231227042 is about 35088.8449795658. The cubic root of 1231227042 is about 1071.7974394740.

Adding to 1231227042 its reverse (2407221321), we get a palindrome (3638448363).

The spelling of 1231227042 in words is "one billion, two hundred thirty-one million, two hundred twenty-seven thousand, forty-two".