2021231011 has 2 divisors, whose sum is σ = 2021231012. Its totient is φ = 2021231010.

The previous prime is 2021230999. The next prime is 2021231021. The reversal of 2021231011 is 1101321202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021231011 - 2⁵ = 2021230979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021230982 and 2021231000.

It is not a weakly prime, because it can be changed into another prime (2021231021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010615505 + 1010615506.

It is an arithmetic number, because the mean of its divisors is an integer number (1010615506).

Almost surely, 2^2021231011 is an apocalyptic number.

2021231011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021231011 is an equidigital number, since it uses as much as digits as its factorization.

2021231011 is an evil number, because the sum of its binary digits is even.

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

The square root of 2021231011 is about 44958.1028403112. The cubic root of 2021231011 is about 1264.3635997569.

Adding to 2021231011 its reverse (1101321202), we get a palindrome (3122552213).

The spelling of 2021231011 in words is "two billion, twenty-one million, two hundred thirty-one thousand, eleven".