2133121011 has 8 divisors (see below), whose sum is σ = 3250470144. Its totient is φ = 1218926280.

The previous prime is 2133120973. The next prime is 2133121021. The reversal of 2133121011 is 1101213312.

It is a happy number.

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

It is not a de Polignac number, because 2133121011 - 2⁹ = 2133120499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2133121021) 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, 50788575 + ... + 50788616.

It is an arithmetic number, because the mean of its divisors is an integer number (406308768).

Almost surely, 2^2133121011 is an apocalyptic number.

2133121011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2133121011 is a deficient number, since it is larger than the sum of its proper divisors (1117349133).

2133121011 is a wasteful number, since it uses less digits than its factorization.

2133121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101577201.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2133121011 is about 46185.7230212974. The cubic root of 2133121011 is about 1287.2764707742.

Adding to 2133121011 its reverse (1101213312), we get a palindrome (3234334323).

The spelling of 2133121011 in words is "two billion, one hundred thirty-three million, one hundred twenty-one thousand, eleven".