1242310231143 has 6 divisors (see below), whose sum is σ = 1794448111664. Its totient is φ = 828206820756.

The previous prime is 1242310231139. The next prime is 1242310231177. The reversal of 1242310231143 is 3411320132421.

1242310231143 is a `hidden beast` number, since 1 + 2 + 423 + 1 + 0 + 231 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 1242310231143 - 2² = 1242310231139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242310221143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69017235055 + ... + 69017235072.

Almost surely, 2^{1242310231143} is an apocalyptic number.

1242310231143 is a deficient number, since it is larger than the sum of its proper divisors (552137880521).

1242310231143 is a wasteful number, since it uses less digits than its factorization.

1242310231143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138034470133 (or 138034470130 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1242310231143 its reverse (3411320132421), we get a palindrome (4653630363564).

The spelling of 1242310231143 in words is "one trillion, two hundred forty-two billion, three hundred ten million, two hundred thirty-one thousand, one hundred forty-three".