2122404143 has 4 divisors (see below), whose sum is σ = 2214682608. Its totient is φ = 2030125680.

The previous prime is 2122404131. The next prime is 2122404149. The reversal of 2122404143 is 3414042212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122404143 - 2⁶ = 2122404079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 92278441 = 2122404143 / (2 + 1 + 2 + 2 + 4 + 0 + 4 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122404149) 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, 46139198 + ... + 46139243.

It is an arithmetic number, because the mean of its divisors is an integer number (553670652).

Almost surely, 2^2122404143 is an apocalyptic number.

2122404143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2122404143 is a deficient number, since it is larger than the sum of its proper divisors (92278465).

2122404143 is an equidigital number, since it uses as much as digits as its factorization.

2122404143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92278464.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2122404143 is about 46069.5576601295. The cubic root of 2122404143 is about 1285.1170777568.

Adding to 2122404143 its reverse (3414042212), we get a palindrome (5536446355).

The spelling of 2122404143 in words is "two billion, one hundred twenty-two million, four hundred four thousand, one hundred forty-three".