10119187891 has 2 divisors, whose sum is σ = 10119187892. Its totient is φ = 10119187890.

The previous prime is 10119187889. The next prime is 10119187909. The reversal of 10119187891 is 19878191101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10119187891 - 2¹ = 10119187889 is a prime.

It is a super-2 number, since 2×10119187891² (a number of 21 digits) contains 22 as substring.

Together with 10119187889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10119187811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5059593945 + 5059593946.

It is an arithmetic number, because the mean of its divisors is an integer number (5059593946).

Almost surely, 2^10119187891 is an apocalyptic number.

10119187891 is a deficient number, since it is larger than the sum of its proper divisors (1).

10119187891 is an equidigital number, since it uses as much as digits as its factorization.

10119187891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 46.

The spelling of 10119187891 in words is "ten billion, one hundred nineteen million, one hundred eighty-seven thousand, eight hundred ninety-one".