140342210121 has 8 divisors (see below), whose sum is σ = 187357734144. Its totient is φ = 93444079760.

The previous prime is 140342210081. The next prime is 140342210123. The reversal of 140342210121 is 121012243041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140342210121 - 2¹³ = 140342201929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140342210123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29345625 + ... + 29350406.

It is an arithmetic number, because the mean of its divisors is an integer number (23419716768).

Almost surely, 2^140342210121 is an apocalyptic number.

It is an amenable number.

140342210121 is a deficient number, since it is larger than the sum of its proper divisors (47015524023).

140342210121 is an equidigital number, since it uses as much as digits as its factorization.

140342210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58696831.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 140342210121 its reverse (121012243041), we get a palindrome (261354453162).

The spelling of 140342210121 in words is "one hundred forty billion, three hundred forty-two million, two hundred ten thousand, one hundred twenty-one".