142817292999121 has 8 divisors (see below), whose sum is σ = 159106798567080. Its totient is φ = 127285438852992.

The previous prime is 142817292999103. The next prime is 142817292999151. The reversal of 142817292999121 is 121999292718241.

It can be written as a sum of positive squares in 4 ways, for example, as 33748094294721 + 109069198704400 = 5809311^2 + 10443620^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142817292999121 - 2³¹ = 142815145515473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142817292999151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189412855060 + ... + 189412855813.

It is an arithmetic number, because the mean of its divisors is an integer number (19888349820885).

Almost surely, 2^{142817292999121} is an apocalyptic number.

It is an amenable number.

142817292999121 is a deficient number, since it is larger than the sum of its proper divisors (16289505567959).

142817292999121 is a wasteful number, since it uses less digits than its factorization.

142817292999121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378825710915.

The product of its digits is 23514624, while the sum is 67.

The spelling of 142817292999121 in words is "one hundred forty-two trillion, eight hundred seventeen billion, two hundred ninety-two million, nine hundred ninety-nine thousand, one hundred twenty-one".