2021013013 has 8 divisors (see below), whose sum is σ = 2148674688. Its totient is φ = 1896667344.

The previous prime is 2021012999. The next prime is 2021013077. The reversal of 2021013013 is 3103101202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021013013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021012984 and 2021013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021013613) 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, 827745 + ... + 830182.

It is an arithmetic number, because the mean of its divisors is an integer number (268584336).

Almost surely, 2^2021013013 is an apocalyptic number.

2021013013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2021013013 is a deficient number, since it is larger than the sum of its proper divisors (127661675).

2021013013 is a wasteful number, since it uses less digits than its factorization.

2021013013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658003.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2021013013 is about 44955.6783176497. The cubic root of 2021013013 is about 1264.3181425339.

Adding to 2021013013 its reverse (3103101202), we get a palindrome (5124114215).

The spelling of 2021013013 in words is "two billion, twenty-one million, thirteen thousand, thirteen".