4240142310121 has 4 divisors (see below), whose sum is σ = 4241480319700. Its totient is φ = 4238804300544.

The previous prime is 4240142310101. The next prime is 4240142310133. The reversal of 4240142310121 is 1210132410424.

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 3178871477721 + 1061270832400 = 1782939^2 + 1030180^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240142310121 - 2¹⁵ = 4240142277353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4240142310101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669000036 + ... + 669006373.

It is an arithmetic number, because the mean of its divisors is an integer number (1060370079925).

Almost surely, 2^{4240142310121} is an apocalyptic number.

It is an amenable number.

4240142310121 is a deficient number, since it is larger than the sum of its proper divisors (1338009579).

4240142310121 is a wasteful number, since it uses less digits than its factorization.

4240142310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338009578.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 4240142310121 its reverse (1210132410424), we get a palindrome (5450274720545).

The spelling of 4240142310121 in words is "four trillion, two hundred forty billion, one hundred forty-two million, three hundred ten thousand, one hundred twenty-one".