1242103201 has 4 divisors (see below), whose sum is σ = 1296107712. Its totient is φ = 1188098692.

The previous prime is 1242103171. The next prime is 1242103229. The reversal of 1242103201 is 1023012421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1023012421 = 19 ⋅53842759.

It is a cyclic number.

It is not a de Polignac number, because 1242103201 - 2⁹ = 1242102689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242103231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27002221 + ... + 27002266.

It is an arithmetic number, because the mean of its divisors is an integer number (324026928).

Almost surely, 2^1242103201 is an apocalyptic number.

It is an amenable number.

1242103201 is a deficient number, since it is larger than the sum of its proper divisors (54004511).

1242103201 is an equidigital number, since it uses as much as digits as its factorization.

1242103201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54004510.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1242103201 is about 35243.4845184184. The cubic root of 1242103201 is about 1074.9441329539.

Adding to 1242103201 its reverse (1023012421), we get a palindrome (2265115622).

The spelling of 1242103201 in words is "one billion, two hundred forty-two million, one hundred three thousand, two hundred one".