10201301321021 has 4 divisors (see below), whose sum is σ = 10206897209472. Its totient is φ = 10195705432572.

The previous prime is 10201301321009. The next prime is 10201301321147. The reversal of 10201301321021 is 12012310310201.

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 a de Polignac number, because none of the positive numbers 2^k-10201301321021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201301311021) 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, 2797941491 + ... + 2797945136.

It is an arithmetic number, because the mean of its divisors is an integer number (2551724302368).

Almost surely, 2^{10201301321021} is an apocalyptic number.

It is an amenable number.

10201301321021 is a deficient number, since it is larger than the sum of its proper divisors (5595888451).

10201301321021 is an equidigital number, since it uses as much as digits as its factorization.

10201301321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595888450.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10201301321021 its reverse (12012310310201), we get a palindrome (22213611631222).

The spelling of 10201301321021 in words is "ten trillion, two hundred one billion, three hundred one million, three hundred twenty-one thousand, twenty-one".