102020110001 has 2 divisors, whose sum is σ = 102020110002. Its totient is φ = 102020110000.

The previous prime is 102020109991. The next prime is 102020110037. The reversal of 102020110001 is 100011020201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96041109025 + 5979000976 = 309905^2 + 77324^2 .

It is a cyclic number.

It is not a de Polignac number, because 102020110001 - 2²² = 102015915697 is a prime.

It is a super-2 number, since 2×102020110001² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102020110051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010055000 + 51010055001.

It is an arithmetic number, because the mean of its divisors is an integer number (51010055001).

Almost surely, 2^102020110001 is an apocalyptic number.

It is an amenable number.

102020110001 is a deficient number, since it is larger than the sum of its proper divisors (1).

102020110001 is an equidigital number, since it uses as much as digits as its factorization.

102020110001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 102020110001 its reverse (100011020201), we get a palindrome (202031130202).

It can be divided in two parts, 1020201 and 10001, that multiplied together give a palindrome (10203030201).

The spelling of 102020110001 in words is "one hundred two billion, twenty million, one hundred ten thousand, one".