2021130120311 has 2 divisors, whose sum is σ = 2021130120312. Its totient is φ = 2021130120310.

The previous prime is 2021130120307. The next prime is 2021130120353. The reversal of 2021130120311 is 1130210311202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021130120311 - 2² = 2021130120307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021130120311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021130120301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010565060155 + 1010565060156.

It is an arithmetic number, because the mean of its divisors is an integer number (1010565060156).

Almost surely, 2^{2021130120311} is an apocalyptic number.

2021130120311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021130120311 is an equidigital number, since it uses as much as digits as its factorization.

2021130120311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2021130120311 its reverse (1130210311202), we get a palindrome (3151340431513).

The spelling of 2021130120311 in words is "two trillion, twenty-one billion, one hundred thirty million, one hundred twenty thousand, three hundred eleven".