4240231223121 has 12 divisors (see below), whose sum is σ = 6124798323072. Its totient is φ = 2826811635576.

The previous prime is 4240231223119. The next prime is 4240231223131. The reversal of 4240231223121 is 1213221320424.

4240231223121 is a `hidden beast` number, since 4 + 2 + 402 + 3 + 1 + 2 + 231 + 21 = 666.

It is not a de Polignac number, because 4240231223121 - 2¹ = 4240231223119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4240231223131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3293860 + ... + 4396586.

It is an arithmetic number, because the mean of its divisors is an integer number (510399860256).

Almost surely, 2^{4240231223121} is an apocalyptic number.

It is an amenable number.

4240231223121 is a deficient number, since it is larger than the sum of its proper divisors (1884567099951).

4240231223121 is a wasteful number, since it uses less digits than its factorization.

4240231223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529980 (or 1529977 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 4240231223121 its reverse (1213221320424), we get a palindrome (5453452543545).

The spelling of 4240231223121 in words is "four trillion, two hundred forty billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred twenty-one".