142234312121 has 16 divisors (see below), whose sum is σ = 161997252480. Its totient is φ = 123616120320.

The previous prime is 142234312117. The next prime is 142234312133. The reversal of 142234312121 is 121213432241.

It is a happy number.

It is not a de Polignac number, because 142234312121 - 2² = 142234312117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142234312321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329111 + ... + 626723.

It is an arithmetic number, because the mean of its divisors is an integer number (10124828280).

Almost surely, 2^142234312121 is an apocalyptic number.

142234312121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142234312121 is a deficient number, since it is larger than the sum of its proper divisors (19762940359).

142234312121 is a wasteful number, since it uses less digits than its factorization.

142234312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299536.

The product of its digits is 2304, while the sum is 26.

Adding to 142234312121 its reverse (121213432241), we get a palindrome (263447744362).

The spelling of 142234312121 in words is "one hundred forty-two billion, two hundred thirty-four million, three hundred twelve thousand, one hundred twenty-one".