142423122220121 has 8 divisors (see below), whose sum is σ = 150011220538080. Its totient is φ = 134844238353888.

The previous prime is 142423122220033. The next prime is 142423122220133. The reversal of 142423122220121 is 121022221324241.

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 142423122220121 - 2⁴⁶ = 72054378042457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142423122420121) 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, 2303581196 + ... + 2303643021.

It is an arithmetic number, because the mean of its divisors is an integer number (18751402567260).

Almost surely, 2^{142423122220121} is an apocalyptic number.

It is an amenable number.

142423122220121 is a deficient number, since it is larger than the sum of its proper divisors (7588098317959).

142423122220121 is a wasteful number, since it uses less digits than its factorization.

142423122220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607225863.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 142423122220121 its reverse (121022221324241), we get a palindrome (263445343544362).

The spelling of 142423122220121 in words is "one hundred forty-two trillion, four hundred twenty-three billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty-one".