2133011243 has 4 divisors (see below), whose sum is σ = 2326921368. Its totient is φ = 1939101120.

The previous prime is 2133011239. The next prime is 2133011281. The reversal of 2133011243 is 3421103312.

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

It is not a de Polignac number, because 2133011243 - 2² = 2133011239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133014243) 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, 96955046 + ... + 96955067.

It is an arithmetic number, because the mean of its divisors is an integer number (581730342).

Almost surely, 2^2133011243 is an apocalyptic number.

2133011243 is a deficient number, since it is larger than the sum of its proper divisors (193910125).

2133011243 is a wasteful number, since it uses less digits than its factorization.

2133011243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193910124.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2133011243 is about 46184.5346734164. The cubic root of 2133011243 is about 1287.2543897972.

Adding to 2133011243 its reverse (3421103312), we get a palindrome (5554114555).

The spelling of 2133011243 in words is "two billion, one hundred thirty-three million, eleven thousand, two hundred forty-three".