2133421010321 has 4 divisors (see below), whose sum is σ = 2202241042944. Its totient is φ = 2064600977700.

The previous prime is 2133421010297. The next prime is 2133421010323. The reversal of 2133421010321 is 1230101243312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2133421010321 - 2¹⁰ = 2133421009297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133421010323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34410016265 + ... + 34410016326.

It is an arithmetic number, because the mean of its divisors is an integer number (550560260736).

Almost surely, 2^{2133421010321} is an apocalyptic number.

It is an amenable number.

2133421010321 is a deficient number, since it is larger than the sum of its proper divisors (68820032623).

2133421010321 is an equidigital number, since it uses as much as digits as its factorization.

2133421010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68820032622.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2133421010321 its reverse (1230101243312), we get a palindrome (3363522253633).

The spelling of 2133421010321 in words is "two trillion, one hundred thirty-three billion, four hundred twenty-one million, ten thousand, three hundred twenty-one".