2121001003023 has 16 divisors (see below), whose sum is σ = 3237397209600. Its totient is φ = 1209977192736.

The previous prime is 2121001003001. The next prime is 2121001003039. The reversal of 2121001003023 is 3203001001212.

It is not a de Polignac number, because 2121001003023 - 2⁶ = 2121001002959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121001002993 and 2121001003011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121001013023) 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, 84294640 + ... + 84319797.

It is an arithmetic number, because the mean of its divisors is an integer number (202337325600).

Almost surely, 2^{2121001003023} is an apocalyptic number.

2121001003023 is a deficient number, since it is larger than the sum of its proper divisors (1116396206577).

2121001003023 is a wasteful number, since it uses less digits than its factorization.

2121001003023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168615046.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2121001003023 its reverse (3203001001212), we get a palindrome (5324002004235).

The spelling of 2121001003023 in words is "two trillion, one hundred twenty-one billion, one million, three thousand, twenty-three".