142121433121 has 8 divisors (see below), whose sum is σ = 142325242304. Its totient is φ = 141917695920.

The previous prime is 142121433107. The next prime is 142121433127. The reversal of 142121433121 is 121334121241.

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 142121433121 - 2¹⁵ = 142121400353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142121433127) 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, 4857091 + ... + 4886263.

It is an arithmetic number, because the mean of its divisors is an integer number (17790655288).

Almost surely, 2^142121433121 is an apocalyptic number.

It is an amenable number.

142121433121 is a deficient number, since it is larger than the sum of its proper divisors (203809183).

142121433121 is an equidigital number, since it uses as much as digits as its factorization.

142121433121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35991.

The product of its digits is 1152, while the sum is 25.

Adding to 142121433121 its reverse (121334121241), we get a palindrome (263455554362).

The spelling of 142121433121 in words is "one hundred forty-two billion, one hundred twenty-one million, four hundred thirty-three thousand, one hundred twenty-one".