102011020253 has 2 divisors, whose sum is σ = 102011020254. Its totient is φ = 102011020252.

The previous prime is 102011020213. The next prime is 102011020277. The reversal of 102011020253 is 352020110201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79829981764 + 22181038489 = 282542^2 + 148933^2 .

It is a cyclic number.

It is not a de Polignac number, because 102011020253 - 2²⁶ = 101943911389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102011020213) 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, 51005510126 + 51005510127.

It is an arithmetic number, because the mean of its divisors is an integer number (51005510127).

Almost surely, 2^102011020253 is an apocalyptic number.

It is an amenable number.

102011020253 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011020253 is an equidigital number, since it uses as much as digits as its factorization.

102011020253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 102011020253 its reverse (352020110201), we get a palindrome (454031130454).

The spelling of 102011020253 in words is "one hundred two billion, eleven million, twenty thousand, two hundred fifty-three".