142321321402105 has 8 divisors (see below), whose sum is σ = 170785733021064. Its totient is φ = 113856958896000.

The previous prime is 142321321402103. The next prime is 142321321402133. The reversal of 142321321402105 is 501204123123241.

It can be written as a sum of positive squares in 4 ways, for example, as 715391172864 + 141605930229241 = 845808^2 + 11899829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142321321402105 - 2¹ = 142321321402103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142321321402103) 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, 5569746 + ... + 17766955.

It is an arithmetic number, because the mean of its divisors is an integer number (21348216627633).

Almost surely, 2^{142321321402105} is an apocalyptic number.

It is an amenable number.

142321321402105 is a deficient number, since it is larger than the sum of its proper divisors (28464411618959).

142321321402105 is a wasteful number, since it uses less digits than its factorization.

142321321402105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24556427.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 142321321402105 its reverse (501204123123241), we get a palindrome (643525444525346).

The spelling of 142321321402105 in words is "one hundred forty-two trillion, three hundred twenty-one billion, three hundred twenty-one million, four hundred two thousand, one hundred five".