2121331101323 has 8 divisors (see below), whose sum is σ = 2425995744000. Its totient is φ = 1817070794280.

The previous prime is 2121331101187. The next prime is 2121331101353. The reversal of 2121331101323 is 3231011331212.

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

It is not a de Polignac number, because 2121331101323 - 2²⁸ = 2121062665867 is a prime.

It is a super-3 number, since 3×2121331101323³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121331101353) 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, 101072663 + ... + 101093648.

It is an arithmetic number, because the mean of its divisors is an integer number (303249468000).

Almost surely, 2^{2121331101323} is an apocalyptic number.

2121331101323 is a deficient number, since it is larger than the sum of its proper divisors (304664642677).

2121331101323 is a wasteful number, since it uses less digits than its factorization.

2121331101323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202167817.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2121331101323 its reverse (3231011331212), we get a palindrome (5352342432535).

The spelling of 2121331101323 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-one million, one hundred one thousand, three hundred twenty-three".