2040140121 has 4 divisors (see below), whose sum is σ = 2720186832. Its totient is φ = 1360093412.

The previous prime is 2040140099. The next prime is 2040140153. The reversal of 2040140121 is 1210410402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2040140121 - 2¹⁴ = 2040123737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2040140121.

It is not an unprimeable number, because it can be changed into a prime (2040140321) 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, 340023351 + ... + 340023356.

It is an arithmetic number, because the mean of its divisors is an integer number (680046708).

Almost surely, 2^2040140121 is an apocalyptic number.

It is an amenable number.

2040140121 is a deficient number, since it is larger than the sum of its proper divisors (680046711).

2040140121 is an equidigital number, since it uses as much as digits as its factorization.

2040140121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680046710.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2040140121 is about 45167.9103014518. The cubic root of 2040140121 is about 1268.2941780886.

Adding to 2040140121 its reverse (1210410402), we get a palindrome (3250550523).

The spelling of 2040140121 in words is "two billion, forty million, one hundred forty thousand, one hundred twenty-one".