2142323211 has 8 divisors (see below), whose sum is σ = 3264492544. Its totient is φ = 1224184680.

The previous prime is 2142323171. The next prime is 2142323251. The reversal of 2142323211 is 1123232412.

It is an interprime number because it is at equal distance from previous prime (2142323171) and next prime (2142323251).

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

It is not a de Polignac number, because 2142323211 - 2⁷ = 2142323083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 102015391 = 2142323211 / (2 + 1 + 4 + 2 + 3 + 2 + 3 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142323251) 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, 51007675 + ... + 51007716.

It is an arithmetic number, because the mean of its divisors is an integer number (408061568).

Almost surely, 2^2142323211 is an apocalyptic number.

2142323211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2142323211 is a deficient number, since it is larger than the sum of its proper divisors (1122169333).

2142323211 is a wasteful number, since it uses less digits than its factorization.

2142323211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102015401.

The product of its digits is 576, while the sum is 21.

The square root of 2142323211 is about 46285.2375061423. The cubic root of 2142323211 is about 1289.1249019565.

Adding to 2142323211 its reverse (1123232412), we get a palindrome (3265555623).

The spelling of 2142323211 in words is "two billion, one hundred forty-two million, three hundred twenty-three thousand, two hundred eleven".