101142120134243 has 16 divisors (see below), whose sum is σ = 104004029700000. Its totient is φ = 98287040259072.

The previous prime is 101142120134239. The next prime is 101142120134273. The reversal of 101142120134243 is 342431021241101.

It is a cyclic number.

It is not a de Polignac number, because 101142120134243 - 2² = 101142120134239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101142120134213) 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, 96855443 + ... + 97894131.

It is an arithmetic number, because the mean of its divisors is an integer number (6500251856250).

Almost surely, 2^{101142120134243} is an apocalyptic number.

101142120134243 is a deficient number, since it is larger than the sum of its proper divisors (2861909565757).

101142120134243 is a wasteful number, since it uses less digits than its factorization.

101142120134243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041974.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 101142120134243 its reverse (342431021241101), we get a palindrome (443573141375344).

The spelling of 101142120134243 in words is "one hundred one trillion, one hundred forty-two billion, one hundred twenty million, one hundred thirty-four thousand, two hundred forty-three".