1242110001 has 8 divisors (see below), whose sum is σ = 1806705504. Its totient is φ = 752793920.

The previous prime is 1242109987. The next prime is 1242110011. The reversal of 1242110001 is 1000112421.

It is a happy number.

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 1242110001 - 2¹⁵ = 1242077233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242110011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18819816 + ... + 18819881.

It is an arithmetic number, because the mean of its divisors is an integer number (225838188).

Almost surely, 2^1242110001 is an apocalyptic number.

1242110001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1242110001 is a deficient number, since it is larger than the sum of its proper divisors (564595503).

1242110001 is a wasteful number, since it uses less digits than its factorization.

1242110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37639711.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1242110001 is about 35243.5809900186. The cubic root of 1242110001 is about 1074.9460945748.

Adding to 1242110001 its reverse (1000112421), we get a palindrome (2242222422).

It can be divided in two parts, 12421 and 10001, that multiplied together give a palindrome (124222421).

The spelling of 1242110001 in words is "one billion, two hundred forty-two million, one hundred ten thousand, one".