1231045342 has 8 divisors (see below), whose sum is σ = 1846731600. Its totient is φ = 615468144.

The previous prime is 1231045303. The next prime is 1231045369. The reversal of 1231045342 is 2435401321.

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

It is a congruent number.

It is an unprimeable number.

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, 12634 + ... + 51202.

It is an arithmetic number, because the mean of its divisors is an integer number (230841450).

Almost surely, 2^1231045342 is an apocalyptic number.

1231045342 is a deficient number, since it is larger than the sum of its proper divisors (615686258).

1231045342 is a wasteful number, since it uses less digits than its factorization.

1231045342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54530.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1231045342 is about 35086.2557420994. The cubic root of 1231045342 is about 1071.7447128934.

Adding to 1231045342 its reverse (2435401321), we get a palindrome (3666446663).

The spelling of 1231045342 in words is "one billion, two hundred thirty-one million, forty-five thousand, three hundred forty-two".