1242303223 has 12 divisors (see below), whose sum is σ = 1451989272. Its totient is φ = 1059775920.

The previous prime is 1242303221. The next prime is 1242303241. The reversal of 1242303223 is 3223032421.

It is not a de Polignac number, because 1242303223 - 2¹ = 1242303221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242303194 and 1242303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242303221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49740 + ... + 70417.

It is an arithmetic number, because the mean of its divisors is an integer number (120999106).

Almost surely, 2^1242303223 is an apocalyptic number.

1242303223 is a deficient number, since it is larger than the sum of its proper divisors (209686049).

1242303223 is a wasteful number, since it uses less digits than its factorization.

1242303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120382 (or 120375 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1242303223 is about 35246.3221201872. The cubic root of 1242303223 is about 1075.0018310407.

Adding to 1242303223 its reverse (3223032421), we get a palindrome (4465335644).

The spelling of 1242303223 in words is "one billion, two hundred forty-two million, three hundred three thousand, two hundred twenty-three".