2012030011021 has 4 divisors (see below), whose sum is σ = 2012045875200. Its totient is φ = 2012014146844.

The previous prime is 2012030010979. The next prime is 2012030011063. The reversal of 2012030011021 is 1201100302102.

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 an interprime number because it is at equal distance from previous prime (2012030010979) and next prime (2012030011063).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012030011021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012030010992 and 2012030011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012030011081) 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, 7740301 + ... + 7996018.

It is an arithmetic number, because the mean of its divisors is an integer number (503011468800).

Almost surely, 2^{2012030011021} is an apocalyptic number.

It is an amenable number.

2012030011021 is a deficient number, since it is larger than the sum of its proper divisors (15864179).

2012030011021 is a wasteful number, since it uses less digits than its factorization.

2012030011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15864178.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2012030011021 its reverse (1201100302102), we get a palindrome (3213130313123).

The spelling of 2012030011021 in words is "two trillion, twelve billion, thirty million, eleven thousand, twenty-one".