101321121001 has 4 divisors (see below), whose sum is σ = 106653811600. Its totient is φ = 95988430404.

The previous prime is 101321120987. The next prime is 101321121007. The reversal of 101321121001 is 100121123101.

It is a happy number.

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 101321121001 - 2¹⁵ = 101321088233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101321121007) 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, 2666345271 + ... + 2666345308.

It is an arithmetic number, because the mean of its divisors is an integer number (26663452900).

Almost surely, 2^101321121001 is an apocalyptic number.

It is an amenable number.

101321121001 is a deficient number, since it is larger than the sum of its proper divisors (5332690599).

101321121001 is an equidigital number, since it uses as much as digits as its factorization.

101321121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332690598.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 101321121001 its reverse (100121123101), we get a palindrome (201442244102).

The spelling of 101321121001 in words is "one hundred one billion, three hundred twenty-one million, one hundred twenty-one thousand, one".