1242233142243 has 32 divisors (see below), whose sum is σ = 1891068560640. Its totient is φ = 720407024640.

The previous prime is 1242233142179. The next prime is 1242233142247. The reversal of 1242233142243 is 3422413322421.

It is a happy number.

It is not a de Polignac number, because 1242233142243 - 2⁶ = 1242233142179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242233142247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15594105 + ... + 15673562.

It is an arithmetic number, because the mean of its divisors is an integer number (59095892520).

Almost surely, 2^{1242233142243} is an apocalyptic number.

1242233142243 is a deficient number, since it is larger than the sum of its proper divisors (648835418397).

1242233142243 is a wasteful number, since it uses less digits than its factorization.

1242233142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31267747.

The product of its digits is 55296, while the sum is 33.

Adding to 1242233142243 its reverse (3422413322421), we get a palindrome (4664646464664).

The spelling of 1242233142243 in words is "one trillion, two hundred forty-two billion, two hundred thirty-three million, one hundred forty-two thousand, two hundred forty-three".