2121320233101 has 16 divisors (see below), whose sum is σ = 2911340664000. Its totient is φ = 1372926901248.

The previous prime is 2121320233069. The next prime is 2121320233183. The reversal of 2121320233101 is 1013320231212.

It is not a de Polignac number, because 2121320233101 - 2⁵ = 2121320233069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121320233001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21231891 + ... + 21331568.

It is an arithmetic number, because the mean of its divisors is an integer number (181958791500).

Almost surely, 2^{2121320233101} is an apocalyptic number.

It is an amenable number.

2121320233101 is a deficient number, since it is larger than the sum of its proper divisors (790020430899).

2121320233101 is a wasteful number, since it uses less digits than its factorization.

2121320233101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42563948.

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

Adding to 2121320233101 its reverse (1013320231212), we get a palindrome (3134640464313).

The spelling of 2121320233101 in words is "two trillion, one hundred twenty-one billion, three hundred twenty million, two hundred thirty-three thousand, one hundred one".