20102628811 has 2 divisors, whose sum is σ = 20102628812. Its totient is φ = 20102628810.

The previous prime is 20102628803. The next prime is 20102628817. The reversal of 20102628811 is 11882620102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102628811 - 2³ = 20102628803 is a prime.

It is a super-3 number, since 3×20102628811³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20102628817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051314405 + 10051314406.

It is an arithmetic number, because the mean of its divisors is an integer number (10051314406).

Almost surely, 2^20102628811 is an apocalyptic number.

20102628811 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102628811 is an equidigital number, since it uses as much as digits as its factorization.

20102628811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 31.

The spelling of 20102628811 in words is "twenty billion, one hundred two million, six hundred twenty-eight thousand, eight hundred eleven".