2012113021 has 8 divisors (see below), whose sum is σ = 2067154400. Its totient is φ = 1957106448.

The previous prime is 2012112967. The next prime is 2012113043. The reversal of 2012113021 is 1203112102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012113021 - 2¹⁷ = 2011981949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012112992 and 2012113010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012113321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145030 + ... + 158296.

It is an arithmetic number, because the mean of its divisors is an integer number (258394300).

Almost surely, 2^2012113021 is an apocalyptic number.

It is an amenable number.

2012113021 is a deficient number, since it is larger than the sum of its proper divisors (55041379).

2012113021 is a wasteful number, since it uses less digits than its factorization.

2012113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17403.

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

The square root of 2012113021 is about 44856.5828056485. The cubic root of 2012113021 is about 1262.4595070632.

Adding to 2012113021 its reverse (1203112102), we get a palindrome (3215225123).

The spelling of 2012113021 in words is "two billion, twelve million, one hundred thirteen thousand, twenty-one".