2142240243 has 32 divisors (see below), whose sum is σ = 3359408640. Its totient is φ = 1197123840.

The previous prime is 2142240229. The next prime is 2142240257. The reversal of 2142240243 is 3420422412.

It is an interprime number because it is at equal distance from previous prime (2142240229) and next prime (2142240257).

It is not a de Polignac number, because 2142240243 - 2⁵ = 2142240211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142240203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482130 + ... + 486552.

It is an arithmetic number, because the mean of its divisors is an integer number (104981520).

Almost surely, 2^2142240243 is an apocalyptic number.

2142240243 is a deficient number, since it is larger than the sum of its proper divisors (1217168397).

2142240243 is a wasteful number, since it uses less digits than its factorization.

2142240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2142240243 is about 46284.3412289729. The cubic root of 2142240243 is about 1289.1082599772.

Adding to 2142240243 its reverse (3420422412), we get a palindrome (5562662655).

The spelling of 2142240243 in words is "two billion, one hundred forty-two million, two hundred forty thousand, two hundred forty-three".