1242103001 has 2 divisors, whose sum is σ = 1242103002. Its totient is φ = 1242103000.

The previous prime is 1242102997. The next prime is 1242103003. The reversal of 1242103001 is 1003012421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1044840976 + 197262025 = 32324^2 + 14045^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242103001 - 2² = 1242102997 is a prime.

Together with 1242103003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1242103003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621051500 + 621051501.

It is an arithmetic number, because the mean of its divisors is an integer number (621051501).

Almost surely, 2^1242103001 is an apocalyptic number.

It is an amenable number.

1242103001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242103001 is an equidigital number, since it uses as much as digits as its factorization.

1242103001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1242103001 is about 35243.4816810144. The cubic root of 1242103001 is about 1074.9440752591.

Adding to 1242103001 its reverse (1003012421), we get a palindrome (2245115422).

The spelling of 1242103001 in words is "one billion, two hundred forty-two million, one hundred three thousand, one".