142123434401 has 8 divisors (see below), whose sum is σ = 153166855464. Its totient is φ = 131095848960.

The previous prime is 142123434377. The next prime is 142123434443. The reversal of 142123434401 is 104434321241.

It can be written as a sum of positive squares in 4 ways, for example, as 25832204176 + 116291230225 = 160724^2 + 341015^2 .

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 142123434401 - 2³⁰ = 141049692577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142123434451) 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, 3940256 + ... + 3976161.

It is an arithmetic number, because the mean of its divisors is an integer number (19145856933).

Almost surely, 2^142123434401 is an apocalyptic number.

It is an amenable number.

142123434401 is a deficient number, since it is larger than the sum of its proper divisors (11043421063).

142123434401 is a wasteful number, since it uses less digits than its factorization.

142123434401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7917811.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 142123434401 its reverse (104434321241), we get a palindrome (246557755642).

The spelling of 142123434401 in words is "one hundred forty-two billion, one hundred twenty-three million, four hundred thirty-four thousand, four hundred one".