1242003302123 has 2 divisors, whose sum is σ = 1242003302124. Its totient is φ = 1242003302122.

The previous prime is 1242003302083. The next prime is 1242003302149. The reversal of 1242003302123 is 3212033002421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242003302123 - 2¹⁴ = 1242003285739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242003352123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621001651061 + 621001651062.

It is an arithmetic number, because the mean of its divisors is an integer number (621001651062).

Almost surely, 2^{1242003302123} is an apocalyptic number.

1242003302123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242003302123 is an equidigital number, since it uses as much as digits as its factorization.

1242003302123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1242003302123 its reverse (3212033002421), we get a palindrome (4454036304544).

The spelling of 1242003302123 in words is "one trillion, two hundred forty-two billion, three million, three hundred two thousand, one hundred twenty-three".