10102002091 has 2 divisors, whose sum is σ = 10102002092. Its totient is φ = 10102002090.

The previous prime is 10102002037. The next prime is 10102002101. The reversal of 10102002091 is 19020020101.

It is a strong prime.

It is an emirp because it is prime and its reverse (19020020101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10102002091 - 2⁷ = 10102001963 is a prime.

It is not a weakly prime, because it can be changed into another prime (10102005091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051001045 + 5051001046.

It is an arithmetic number, because the mean of its divisors is an integer number (5051001046).

Almost surely, 2^10102002091 is an apocalyptic number.

10102002091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102002091 is an equidigital number, since it uses as much as digits as its factorization.

10102002091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10102002091 its reverse (19020020101), we get a palindrome (29122022192).

The spelling of 10102002091 in words is "ten billion, one hundred two million, two thousand, ninety-one".