1242011 has 8 divisors (see below), whose sum is σ = 1320000. Its totient is φ = 1165320.

The previous prime is 1242001. The next prime is 1242029. The reversal of 1242011 is 1102421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241983 and 1242001.

It is not an unprimeable number, because it can be changed into a prime (1242001) 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 7 ways as a sum of consecutive naturals, for example, 2240 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (165000).

2^1242011 is an apocalyptic number.

1242011 is a deficient number, since it is larger than the sum of its proper divisors (77989).

1242011 is a wasteful number, since it uses less digits than its factorization.

1242011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1242011 is about 1114.4554724169. The cubic root of 1242011 is about 107.4917534687.

Adding to 1242011 its reverse (1102421), we get a palindrome (2344432).

The spelling of 1242011 in words is "one million, two hundred forty-two thousand, eleven".