1001330042 has 8 divisors (see below), whose sum is σ = 1503854100. Its totient is φ = 500045344.

The previous prime is 1001330023. The next prime is 1001330051. The reversal of 1001330042 is 2400331001.

It can be written as a sum of positive squares in 2 ways, for example, as 999887641 + 1442401 = 31621^2 + 1201^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1001329999 and 1001330026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307817 + ... + 311052.

Almost surely, 2^1001330042 is an apocalyptic number.

1001330042 is a deficient number, since it is larger than the sum of its proper divisors (502524058).

1001330042 is an equidigital number, since it uses as much as digits as its factorization.

1001330042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619680.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1001330042 is about 31643.7994242158. The cubic root of 1001330042 is about 1000.4431509216.

Adding to 1001330042 its reverse (2400331001), we get a palindrome (3401661043).

The spelling of 1001330042 in words is "one billion, one million, three hundred thirty thousand, forty-two".