2123133411 has 8 divisors (see below), whose sum is σ = 3235250944. Its totient is φ = 1213219080.

The previous prime is 2123133407. The next prime is 2123133431. The reversal of 2123133411 is 1143313212.

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

It is not a de Polignac number, because 2123133411 - 2² = 2123133407 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: 101101591 = 2123133411 / (2 + 1 + 2 + 3 + 1 + 3 + 3 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123133431) 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, 50550775 + ... + 50550816.

It is an arithmetic number, because the mean of its divisors is an integer number (404406368).

Almost surely, 2^2123133411 is an apocalyptic number.

2123133411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2123133411 is a deficient number, since it is larger than the sum of its proper divisors (1112117533).

2123133411 is a wasteful number, since it uses less digits than its factorization.

2123133411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101101601.

The product of its digits is 432, while the sum is 21.

The square root of 2123133411 is about 46077.4718381988. The cubic root of 2123133411 is about 1285.2642516497.

Adding to 2123133411 its reverse (1143313212), we get a palindrome (3266446623).

The spelling of 2123133411 in words is "two billion, one hundred twenty-three million, one hundred thirty-three thousand, four hundred eleven".