2012023013021 has 4 divisors (see below), whose sum is σ = 2299454872032. Its totient is φ = 1724591154012.

The previous prime is 2012023012999. The next prime is 2012023013029. The reversal of 2012023013021 is 1203103202102.

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 2012023013021 - 2¹⁴ = 2012022996637 is a prime.

It is a super-2 number, since 2×2012023013021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012023013029) 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, 143715929495 + ... + 143715929508.

It is an arithmetic number, because the mean of its divisors is an integer number (574863718008).

Almost surely, 2^{2012023013021} is an apocalyptic number.

It is an amenable number.

2012023013021 is a deficient number, since it is larger than the sum of its proper divisors (287431859011).

2012023013021 is an equidigital number, since it uses as much as digits as its factorization.

2012023013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287431859010.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2012023013021 its reverse (1203103202102), we get a palindrome (3215126215123).

The spelling of 2012023013021 in words is "two trillion, twelve billion, twenty-three million, thirteen thousand, twenty-one".