10102021087 has 2 divisors, whose sum is σ = 10102021088. Its totient is φ = 10102021086.

The previous prime is 10102021079. The next prime is 10102021091. The reversal of 10102021087 is 78012020101.

It is a strong prime.

It is an emirp because it is prime and its reverse (78012020101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10102021087 - 2³ = 10102021079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10102021067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051010543 + 5051010544.

It is an arithmetic number, because the mean of its divisors is an integer number (5051010544).

Almost surely, 2^10102021087 is an apocalyptic number.

10102021087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102021087 is an equidigital number, since it uses as much as digits as its factorization.

10102021087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 10102021087 its reverse (78012020101), we get a palindrome (88114041188).

The spelling of 10102021087 in words is "ten billion, one hundred two million, twenty-one thousand, eighty-seven".