2120321101001 has 16 divisors (see below), whose sum is σ = 2201271141888. Its totient is φ = 2040160348800.

The previous prime is 2120321100991. The next prime is 2120321101007. The reversal of 2120321101001 is 1001011230212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120321101001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120321101007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28652090 + ... + 28725996.

It is an arithmetic number, because the mean of its divisors is an integer number (137579446368).

Almost surely, 2^{2120321101001} is an apocalyptic number.

It is an amenable number.

2120321101001 is a deficient number, since it is larger than the sum of its proper divisors (80950040887).

2120321101001 is a wasteful number, since it uses less digits than its factorization.

2120321101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79232.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2120321101001 its reverse (1001011230212), we get a palindrome (3121332331213).

The spelling of 2120321101001 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, one hundred one thousand, one".