1242003011 has 2 divisors, whose sum is σ = 1242003012. Its totient is φ = 1242003010.

The previous prime is 1242002989. The next prime is 1242003023. The reversal of 1242003011 is 1103002421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242003011 - 2¹⁰ = 1242001987 is a prime.

It is a super-2 number, since 2×1242003011² = 3085142958666132242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1242003031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621001505 + 621001506.

It is an arithmetic number, because the mean of its divisors is an integer number (621001506).

Almost surely, 2^1242003011 is an apocalyptic number.

1242003011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242003011 is an equidigital number, since it uses as much as digits as its factorization.

1242003011 is an evil number, because the sum of its binary digits is even.

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

The square root of 1242003011 is about 35242.0630922765. The cubic root of 1242003011 is about 1074.9152299480.

Adding to 1242003011 its reverse (1103002421), we get a palindrome (2345005432).

The spelling of 1242003011 in words is "one billion, two hundred forty-two million, three thousand, eleven".