142413123305 has 4 divisors (see below), whose sum is σ = 170895747972. Its totient is φ = 113930498640.

The previous prime is 142413123271. The next prime is 142413123331. The reversal of 142413123305 is 503321314241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68135616784 + 74277506521 = 261028^2 + 272539^2 .

It is not a de Polignac number, because 142413123305 - 2¹² = 142413119209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14241312326 + ... + 14241312335.

It is an arithmetic number, because the mean of its divisors is an integer number (42723936993).

Almost surely, 2^142413123305 is an apocalyptic number.

It is an amenable number.

142413123305 is a deficient number, since it is larger than the sum of its proper divisors (28482624667).

142413123305 is an equidigital number, since it uses as much as digits as its factorization.

142413123305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28482624666.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 142413123305 its reverse (503321314241), we get a palindrome (645734437546).

The spelling of 142413123305 in words is "one hundred forty-two billion, four hundred thirteen million, one hundred twenty-three thousand, three hundred five".