142001222423 has 4 divisors (see below), whose sum is σ = 142020211488. Its totient is φ = 141982233360.

The previous prime is 142001222399. The next prime is 142001222437. The reversal of 142001222423 is 324222100241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324222100241 = 13 ⋅24940161557.

It is a cyclic number.

It is not a de Polignac number, because 142001222423 - 2²⁸ = 141732786967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142001228423) 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, 9483311 + ... + 9498272.

It is an arithmetic number, because the mean of its divisors is an integer number (35505052872).

Almost surely, 2^142001222423 is an apocalyptic number.

142001222423 is a deficient number, since it is larger than the sum of its proper divisors (18989065).

142001222423 is an equidigital number, since it uses as much as digits as its factorization.

142001222423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18989064.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 142001222423 its reverse (324222100241), we get a palindrome (466223322664).

The spelling of 142001222423 in words is "one hundred forty-two billion, one million, two hundred twenty-two thousand, four hundred twenty-three".