10102020072481 has 2 divisors, whose sum is σ = 10102020072482. Its totient is φ = 10102020072480.

The previous prime is 10102020072451. The next prime is 10102020072491. The reversal of 10102020072481 is 18427002020101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9219846416400 + 882173656081 = 3036420^2 + 939241^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102020072481 - 2²⁵ = 10101986518049 is a prime.

It is a super-2 number, since 2×10102020072481² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10102020072401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051010036240 + 5051010036241.

It is an arithmetic number, because the mean of its divisors is an integer number (5051010036241).

Almost surely, 2^{10102020072481} is an apocalyptic number.

It is an amenable number.

10102020072481 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102020072481 is an equidigital number, since it uses as much as digits as its factorization.

10102020072481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 28.

Adding to 10102020072481 its reverse (18427002020101), we get a palindrome (28529022092582).

The spelling of 10102020072481 in words is "ten trillion, one hundred two billion, twenty million, seventy-two thousand, four hundred eighty-one".