1331242234 has 16 divisors (see below), whose sum is σ = 2325189888. Its totient is φ = 559767312.

The previous prime is 1331242217. The next prime is 1331242249. The reversal of 1331242234 is 4322421331.

It is a junction number, because it is equal to n+sod(n) for n = 1331242199 and 1331242208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896322 + ... + 897805.

It is an arithmetic number, because the mean of its divisors is an integer number (145324368).

Almost surely, 2^1331242234 is an apocalyptic number.

1331242234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1331242234 is a deficient number, since it is larger than the sum of its proper divisors (993947654).

1331242234 is a wasteful number, since it uses less digits than its factorization.

1331242234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794189.

The product of its digits is 3456, while the sum is 25.

The square root of 1331242234 is about 36486.1923746504. The cubic root of 1331242234 is about 1100.0667270817.

Adding to 1331242234 its reverse (4322421331), we get a palindrome (5653663565).

The spelling of 1331242234 in words is "one billion, three hundred thirty-one million, two hundred forty-two thousand, two hundred thirty-four".