142111232243 has 4 divisors (see below), whose sum is σ = 143823415848. Its totient is φ = 140399048640.

The previous prime is 142111232171. The next prime is 142111232281. The reversal of 142111232243 is 342232111241.

It is a happy number.

142111232243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342232111241 = 761 ⋅449713681.

It is a cyclic number.

It is not a de Polignac number, because 142111232243 - 2²⁰ = 142110183667 is a prime.

It is a super-2 number, since 2×142111232243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142111232143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856091678 + ... + 856091843.

It is an arithmetic number, because the mean of its divisors is an integer number (35955853962).

Almost surely, 2^142111232243 is an apocalyptic number.

142111232243 is a deficient number, since it is larger than the sum of its proper divisors (1712183605).

142111232243 is an equidigital number, since it uses as much as digits as its factorization.

142111232243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712183604.

The product of its digits is 2304, while the sum is 26.

Adding to 142111232243 its reverse (342232111241), we get a palindrome (484343343484).

The spelling of 142111232243 in words is "one hundred forty-two billion, one hundred eleven million, two hundred thirty-two thousand, two hundred forty-three".