2122135243 has 4 divisors (see below), whose sum is σ = 2132192968. Its totient is φ = 2112077520.

The previous prime is 2122135237. The next prime is 2122135271. The reversal of 2122135243 is 3425312212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122135243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122135643) 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, 5028546 + ... + 5028967.

It is an arithmetic number, because the mean of its divisors is an integer number (533048242).

Almost surely, 2^2122135243 is an apocalyptic number.

2122135243 is a deficient number, since it is larger than the sum of its proper divisors (10057725).

2122135243 is a wasteful number, since it uses less digits than its factorization.

2122135243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10057724.

The product of its digits is 2880, while the sum is 25.

The square root of 2122135243 is about 46066.6391545986. The cubic root of 2122135243 is about 1285.0628024235.

Adding to 2122135243 its reverse (3425312212), we get a palindrome (5547447455).

The spelling of 2122135243 in words is "two billion, one hundred twenty-two million, one hundred thirty-five thousand, two hundred forty-three".