20210001011 has 2 divisors, whose sum is σ = 20210001012. Its totient is φ = 20210001010.

The previous prime is 20210000957. The next prime is 20210001061. The reversal of 20210001011 is 11010001202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20210001011 - 2⁶ = 20210000947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20210001011.

It is not a weakly prime, because it can be changed into another prime (20210001061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105000505 + 10105000506.

It is an arithmetic number, because the mean of its divisors is an integer number (10105000506).

Almost surely, 2^20210001011 is an apocalyptic number.

20210001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210001011 is an equidigital number, since it uses as much as digits as its factorization.

20210001011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20210001011 its reverse (11010001202), we get a palindrome (31220002213).

The spelling of 20210001011 in words is "twenty billion, two hundred ten million, one thousand, eleven".