1243322101 has 8 divisors (see below), whose sum is σ = 1421642880. Its totient is φ = 1065177168.

The previous prime is 1243322099. The next prime is 1243322107. The reversal of 1243322101 is 1012233421.

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 1243322101 - 2¹ = 1243322099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243322107) by changing a digit.

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, 28441 + ... + 57406.

It is an arithmetic number, because the mean of its divisors is an integer number (177705360).

Almost surely, 2^1243322101 is an apocalyptic number.

It is an amenable number.

1243322101 is a deficient number, since it is larger than the sum of its proper divisors (178320779).

1243322101 is an equidigital number, since it uses as much as digits as its factorization.

1243322101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87923.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1243322101 is about 35260.7728361135. The cubic root of 1243322101 is about 1075.2956391854.

Adding to 1243322101 its reverse (1012233421), we get a palindrome (2255555522).

The spelling of 1243322101 in words is "one billion, two hundred forty-three million, three hundred twenty-two thousand, one hundred one".