1242142242023 has 16 divisors (see below), whose sum is σ = 1274940263520. Its totient is φ = 1209784955904.

The previous prime is 1242142241981. The next prime is 1242142242031. The reversal of 1242142242023 is 3202422412421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242142242023 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 (1242142244023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12851465 + ... + 12947757.

It is an arithmetic number, because the mean of its divisors is an integer number (79683766470).

Almost surely, 2^{1242142242023} is an apocalyptic number.

1242142242023 is a deficient number, since it is larger than the sum of its proper divisors (32798021497).

1242142242023 is an equidigital number, since it uses as much as digits as its factorization.

1242142242023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98578.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 1242142242023 its reverse (3202422412421), we get a palindrome (4444564654444).

The spelling of 1242142242023 in words is "one trillion, two hundred forty-two billion, one hundred forty-two million, two hundred forty-two thousand, twenty-three".