142220412523 has 16 divisors (see below), whose sum is σ = 172195213824. Its totient is φ = 114668058240.

The previous prime is 142220412493. The next prime is 142220412527. The reversal of 142220412523 is 325214022241.

It is a cyclic number.

It is not a de Polignac number, because 142220412523 - 2⁵ = 142220412491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142220412491 and 142220412500.

It is not an unprimeable number, because it can be changed into a prime (142220412527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121743 + ... + 547048.

It is an arithmetic number, because the mean of its divisors is an integer number (10762200864).

Almost surely, 2^142220412523 is an apocalyptic number.

142220412523 is a deficient number, since it is larger than the sum of its proper divisors (29974801301).

142220412523 is a wasteful number, since it uses less digits than its factorization.

142220412523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670602.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 142220412523 its reverse (325214022241), we get a palindrome (467434434764).

The spelling of 142220412523 in words is "one hundred forty-two billion, two hundred twenty million, four hundred twelve thousand, five hundred twenty-three".