142220036623 has 12 divisors (see below), whose sum is σ = 165489759840. Its totient is φ = 121865954112.

The previous prime is 142220036591. The next prime is 142220036677. The reversal of 142220036623 is 326630022241.

It is not a de Polignac number, because 142220036623 - 2⁵ = 142220036591 is a prime.

It is a super-2 number, since 2×142220036623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142220036683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275703 + ... + 600376.

It is an arithmetic number, because the mean of its divisors is an integer number (13790813320).

Almost surely, 2^142220036623 is an apocalyptic number.

142220036623 is a deficient number, since it is larger than the sum of its proper divisors (23269723217).

142220036623 is an equidigital number, since it uses as much as digits as its factorization.

142220036623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879406 (or 879399 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 142220036623 its reverse (326630022241), we get a palindrome (468850058864).

The spelling of 142220036623 in words is "one hundred forty-two billion, two hundred twenty million, thirty-six thousand, six hundred twenty-three".