1231422344 has 8 divisors (see below), whose sum is σ = 2308916910. Its totient is φ = 615711168.

The previous prime is 1231422341. The next prime is 1231422349. The reversal of 1231422344 is 4432241321.

It can be written as a sum of positive squares in only one way, i.e., 1231308100 + 114244 = 35090^2 + 338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1231422341) 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 as a sum of consecutive naturals, namely, 76963889 + ... + 76963904.

Almost surely, 2^1231422344 is an apocalyptic number.

It is an amenable number.

1231422344 is a deficient number, since it is larger than the sum of its proper divisors (1077494566).

1231422344 is a wasteful number, since it uses less digits than its factorization.

1231422344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153927799 (or 153927795 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 1231422344 is about 35091.6278334306. The cubic root of 1231422344 is about 1071.8541073642.

Adding to 1231422344 its reverse (4432241321), we get a palindrome (5663663665).

The spelling of 1231422344 in words is "one billion, two hundred thirty-one million, four hundred twenty-two thousand, three hundred forty-four".