1231344342 has 40 divisors (see below), whose sum is σ = 2792396376. Its totient is φ = 405498528.

The previous prime is 1231344341. The next prime is 1231344371. The reversal of 1231344342 is 2434431321.

1231344342 is a `hidden beast` number, since 1 + 2 + 313 + 4 + 4 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231344341) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32343 + ... + 59234.

Almost surely, 2^1231344342 is an apocalyptic number.

1231344342 is an abundant number, since it is smaller than the sum of its proper divisors (1561052034).

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

1231344342 is an equidigital number, since it uses as much as digits as its factorization.

1231344342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91674 (or 91665 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1231344342 is about 35090.5164111331. The cubic root of 1231344342 is about 1071.8314753972.

Adding to 1231344342 its reverse (2434431321), we get a palindrome (3665775663).

The spelling of 1231344342 in words is "one billion, two hundred thirty-one million, three hundred forty-four thousand, three hundred forty-two".