2121124143 has 8 divisors (see below), whose sum is σ = 2828431408. Its totient is φ = 1413949824.

The previous prime is 2121124139. The next prime is 2121124151. The reversal of 2121124143 is 3414211212.

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

It is not a de Polignac number, because 2121124143 - 2² = 2121124139 is a prime.

It is a super-3 number, since 3×2121124143³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121120143) 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, 13305 + ... + 66477.

It is an arithmetic number, because the mean of its divisors is an integer number (353553926).

Almost surely, 2^2121124143 is an apocalyptic number.

2121124143 is a deficient number, since it is larger than the sum of its proper divisors (707307265).

2121124143 is a wasteful number, since it uses less digits than its factorization.

2121124143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66473.

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

The square root of 2121124143 is about 46055.6635279528. The cubic root of 2121124143 is about 1284.8586788621.

Adding to 2121124143 its reverse (3414211212), we get a palindrome (5535335355).

It can be divided in two parts, 21211 and 24143, that added together give a palindrome (45354).

The spelling of 2121124143 in words is "two billion, one hundred twenty-one million, one hundred twenty-four thousand, one hundred forty-three".