1242312001 has 8 divisors (see below), whose sum is σ = 1420275200. Its totient is φ = 1064471328.

The previous prime is 1242311869. The next prime is 1242312007. The reversal of 1242312001 is 1002132421.

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

It is a cyclic number.

It is not a de Polignac number, because 1242312001 - 2¹¹ = 1242309953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242312007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7761 + ... + 50446.

It is an arithmetic number, because the mean of its divisors is an integer number (177534400).

Almost surely, 2^1242312001 is an apocalyptic number.

It is an amenable number.

1242312001 is a deficient number, since it is larger than the sum of its proper divisors (177963199).

1242312001 is an equidigital number, since it uses as much as digits as its factorization.

1242312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61263.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1242312001 is about 35246.4466435980. The cubic root of 1242312001 is about 1075.0043629893.

Adding to 1242312001 its reverse (1002132421), we get a palindrome (2244444422).

The spelling of 1242312001 in words is "one billion, two hundred forty-two million, three hundred twelve thousand, one".