142563334121 has 4 divisors (see below), whose sum is σ = 153529744452. Its totient is φ = 131596923792.

The previous prime is 142563334079. The next prime is 142563334153. The reversal of 142563334121 is 121433365241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5600426896 + 136962907225 = 74836^2 + 370085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142563334121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142566334121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5483205146 + ... + 5483205171.

It is an arithmetic number, because the mean of its divisors is an integer number (38382436113).

Almost surely, 2^142563334121 is an apocalyptic number.

It is an amenable number.

142563334121 is a deficient number, since it is larger than the sum of its proper divisors (10966410331).

142563334121 is a wasteful number, since it uses less digits than its factorization.

142563334121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10966410330.

The product of its digits is 51840, while the sum is 35.

Adding to 142563334121 its reverse (121433365241), we get a palindrome (263996699362).

The spelling of 142563334121 in words is "one hundred forty-two billion, five hundred sixty-three million, three hundred thirty-four thousand, one hundred twenty-one".