2021013101 has 8 divisors (see below), whose sum is σ = 2086746624. Its totient is φ = 1955313360.

The previous prime is 2021013077. The next prime is 2021013107. The reversal of 2021013101 is 1013101202.

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-2021013101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021013107) 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, 180791 + ... + 191643.

It is an arithmetic number, because the mean of its divisors is an integer number (260843328).

Almost surely, 2^2021013101 is an apocalyptic number.

It is an amenable number.

2021013101 is a deficient number, since it is larger than the sum of its proper divisors (65733523).

2021013101 is a wasteful number, since it uses less digits than its factorization.

2021013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16891.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2021013101 is about 44955.6792963915. The cubic root of 2021013101 is about 1264.3181608845.

Adding to 2021013101 its reverse (1013101202), we get a palindrome (3034114303).

It can be divided in two parts, 202 and 1013101, that multiplied together give a palindrome (204646402).

The spelling of 2021013101 in words is "two billion, twenty-one million, thirteen thousand, one hundred one".