140203233122121 has 24 divisors (see below), whose sum is σ = 218241179714376. Its totient is φ = 86220655384320.

The previous prime is 140203233122093. The next prime is 140203233122159. The reversal of 140203233122121 is 121221332302041.

140203233122121 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 0 + 323 + 312 + 2 + 1 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 33449103590400 + 106754129531721 = 5783520^2 + 10332189^2 .

It is not a de Polignac number, because 140203233122121 - 2¹⁷ = 140203232991049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140203233132121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404390610 + ... + 404737163.

It is an arithmetic number, because the mean of its divisors is an integer number (9093382488099).

Almost surely, 2^{140203233122121} is an apocalyptic number.

It is an amenable number.

140203233122121 is a deficient number, since it is larger than the sum of its proper divisors (78037946592255).

140203233122121 is a wasteful number, since it uses less digits than its factorization.

140203233122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809129273 (or 809129270 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 140203233122121 its reverse (121221332302041), we get a palindrome (261424565424162).

The spelling of 140203233122121 in words is "one hundred forty trillion, two hundred three billion, two hundred thirty-three million, one hundred twenty-two thousand, one hundred twenty-one".