1242321101 has 8 divisors (see below), whose sum is σ = 1424334144. Its totient is φ = 1061442720.

The previous prime is 1242321097. The next prime is 1242321161. The reversal of 1242321101 is 1011232421.

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 1242321101 - 2² = 1242321097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242321101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242321161) 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, 281315 + ... + 285696.

It is an arithmetic number, because the mean of its divisors is an integer number (178041768).

Almost surely, 2^1242321101 is an apocalyptic number.

It is an amenable number.

1242321101 is a deficient number, since it is larger than the sum of its proper divisors (182013043).

1242321101 is an equidigital number, since it uses as much as digits as its factorization.

1242321101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567331.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1242321101 is about 35246.5757343887. The cubic root of 1242321101 is about 1075.0069878039.

Adding to 1242321101 its reverse (1011232421), we get a palindrome (2253553522).

The spelling of 1242321101 in words is "one billion, two hundred forty-two million, three hundred twenty-one thousand, one hundred one".