10001011995 has 96 divisors (see below), whose sum is σ = 18891757248. Its totient is φ = 4865163264.

The previous prime is 10001011973. The next prime is 10001011997. The reversal of 10001011995 is 59911010001.

It is not a de Polignac number, because 10001011995 - 2⁵ = 10001011963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10001011997) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31951959 + ... + 31952271.

It is an arithmetic number, because the mean of its divisors is an integer number (196789138).

Almost surely, 2^10001011995 is an apocalyptic number.

10001011995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10001011995 is a deficient number, since it is larger than the sum of its proper divisors (8890745253).

10001011995 is a wasteful number, since it uses less digits than its factorization.

10001011995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 27.

Adding to 10001011995 its reverse (59911010001), we get a palindrome (69912021996).

The spelling of 10001011995 in words is "ten billion, one million, eleven thousand, nine hundred ninety-five".