2021213013 has 8 divisors (see below), whose sum is σ = 2695542528. Its totient is φ = 1347179424.

The previous prime is 2021213009. The next prime is 2021213057. The reversal of 2021213013 is 3103121202.

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

It is not a de Polignac number, because 2021213013 - 2² = 2021213009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021212983 and 2021213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021213083) 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, 57520 + ... + 85737.

It is an arithmetic number, because the mean of its divisors is an integer number (336942816).

Almost surely, 2^2021213013 is an apocalyptic number.

It is an amenable number.

2021213013 is a deficient number, since it is larger than the sum of its proper divisors (674329515).

2021213013 is a wasteful number, since it uses less digits than its factorization.

2021213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147963.

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

The square root of 2021213013 is about 44957.9026757254. The cubic root of 2021213013 is about 1264.3598469146.

Adding to 2021213013 its reverse (3103121202), we get a palindrome (5124334215).

The spelling of 2021213013 in words is "two billion, twenty-one million, two hundred thirteen thousand, thirteen".