2121323132333 has 16 divisors (see below), whose sum is σ = 2172606903936. Its totient is φ = 2070476616000.

The previous prime is 2121323132321. The next prime is 2121323132393. The reversal of 2121323132333 is 3332313231212.

It is a cyclic number.

It is not a de Polignac number, because 2121323132333 - 2⁸ = 2121323132077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121323132296 and 2121323132305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121323132393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10851491 + ... + 11045247.

It is an arithmetic number, because the mean of its divisors is an integer number (135787931496).

Almost surely, 2^{2121323132333} is an apocalyptic number.

It is an amenable number.

2121323132333 is a deficient number, since it is larger than the sum of its proper divisors (51283771603).

2121323132333 is a wasteful number, since it uses less digits than its factorization.

2121323132333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194884.

The product of its digits is 11664, while the sum is 29.

Adding to 2121323132333 its reverse (3332313231212), we get a palindrome (5453636363545).

The spelling of 2121323132333 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-three million, one hundred thirty-two thousand, three hundred thirty-three".