142323302121 has 128 divisors (see below), whose sum is σ = 265375014912. Its totient is φ = 65463552000.

The previous prime is 142323302101. The next prime is 142323302123. The reversal of 142323302121 is 121203323241.

It is not a de Polignac number, because 142323302121 - 2¹¹ = 142323300073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142323302091 and 142323302100.

It is not an unprimeable number, because it can be changed into a prime (142323302123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7879861 + ... + 7897901.

It is an arithmetic number, because the mean of its divisors is an integer number (2073242304).

Almost surely, 2^142323302121 is an apocalyptic number.

142323302121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142323302121 is a deficient number, since it is larger than the sum of its proper divisors (123051712791).

142323302121 is a wasteful number, since it uses less digits than its factorization.

142323302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18183.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 142323302121 its reverse (121203323241), we get a palindrome (263526625362).

It can be divided in two parts, 142323 and 302121, that added together give a palindrome (444444).

The spelling of 142323302121 in words is "one hundred forty-two billion, three hundred twenty-three million, three hundred two thousand, one hundred twenty-one".