1242103171 has 2 divisors, whose sum is σ = 1242103172. Its totient is φ = 1242103170.

The previous prime is 1242103127. The next prime is 1242103229. The reversal of 1242103171 is 1713012421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1242103171 - 2¹¹ = 1242101123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242103271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621051585 + 621051586.

It is an arithmetic number, because the mean of its divisors is an integer number (621051586).

Almost surely, 2^1242103171 is an apocalyptic number.

1242103171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242103171 is an equidigital number, since it uses as much as digits as its factorization.

1242103171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1242103171 is about 35243.4840928079. The cubic root of 1242103171 is about 1074.9441242997.

Adding to 1242103171 its reverse (1713012421), we get a palindrome (2955115592).

The spelling of 1242103171 in words is "one billion, two hundred forty-two million, one hundred three thousand, one hundred seventy-one".