1231322242 has 8 divisors (see below), whose sum is σ = 1847914236. Its totient is φ = 615350832.

The previous prime is 1231322233. The next prime is 1231322249. The reversal of 1231322242 is 2422231321.

It can be written as a sum of positive squares in 2 ways, for example, as 742072081 + 489250161 = 27241^2 + 22119^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1231322249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150153 + ... + 158140.

Almost surely, 2^1231322242 is an apocalyptic number.

1231322242 is a deficient number, since it is larger than the sum of its proper divisors (616591994).

1231322242 is a wasteful number, since it uses less digits than its factorization.

1231322242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310292.

The product of its digits is 1152, while the sum is 22.

The square root of 1231322242 is about 35090.2015098232. The cubic root of 1231322242 is about 1071.8250629972.

Adding to 1231322242 its reverse (2422231321), we get a palindrome (3653553563).

The spelling of 1231322242 in words is "one billion, two hundred thirty-one million, three hundred twenty-two thousand, two hundred forty-two".