10115012091 has 4 divisors (see below), whose sum is σ = 13486682792. Its totient is φ = 6743341392.

The previous prime is 10115012071. The next prime is 10115012099. The reversal of 10115012091 is 19021051101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10115012091 - 2¹⁴ = 10114995707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10115012099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685835346 + ... + 1685835351.

It is an arithmetic number, because the mean of its divisors is an integer number (3371670698).

Almost surely, 2^10115012091 is an apocalyptic number.

10115012091 is a deficient number, since it is larger than the sum of its proper divisors (3371670701).

10115012091 is an equidigital number, since it uses as much as digits as its factorization.

10115012091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371670700.

The product of its (nonzero) digits is 90, while the sum is 21.

Adding to 10115012091 its reverse (19021051101), we get a palindrome (29136063192).

The spelling of 10115012091 in words is "ten billion, one hundred fifteen million, twelve thousand, ninety-one".