142330021129 has 4 divisors (see below), whose sum is σ = 142733222676. Its totient is φ = 141926819584.

The previous prime is 142330021121. The next prime is 142330021189. The reversal of 142330021129 is 921120033241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 921120033241 = 1613 ⋅571060157.

It can be written as a sum of positive squares in 2 ways, for example, as 55806975225 + 86523045904 = 236235^2 + 294148^2 .

It is a cyclic number.

It is not a de Polignac number, because 142330021129 - 2³ = 142330021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142330021097 and 142330021106.

It is not an unprimeable number, because it can be changed into a prime (142330021121) 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, 201600244 + ... + 201600949.

It is an arithmetic number, because the mean of its divisors is an integer number (35683305669).

Almost surely, 2^142330021129 is an apocalyptic number.

It is an amenable number.

142330021129 is a deficient number, since it is larger than the sum of its proper divisors (403201547).

142330021129 is an equidigital number, since it uses as much as digits as its factorization.

142330021129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403201546.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 142330021129 in words is "one hundred forty-two billion, three hundred thirty million, twenty-one thousand, one hundred twenty-nine".