2010101321 has 4 divisors (see below), whose sum is σ = 2011454592. Its totient is φ = 2008748052.

The previous prime is 2010101309. The next prime is 2010101329. The reversal of 2010101321 is 1231010102.

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 2010101321 - 2¹⁰ = 2010100297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010101329) 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, 674405 + ... + 677378.

It is an arithmetic number, because the mean of its divisors is an integer number (502863648).

Almost surely, 2^2010101321 is an apocalyptic number.

It is an amenable number.

2010101321 is a deficient number, since it is larger than the sum of its proper divisors (1353271).

2010101321 is a wasteful number, since it uses less digits than its factorization.

2010101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353270.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2010101321 is about 44834.1535104657. The cubic root of 2010101321 is about 1262.0386333144.

Adding to 2010101321 its reverse (1231010102), we get a palindrome (3241111423).

The spelling of 2010101321 in words is "two billion, ten million, one hundred one thousand, three hundred twenty-one".