181001130001 has 8 divisors (see below), whose sum is σ = 183891894624. Its totient is φ = 178115931840.

The previous prime is 181001129971. The next prime is 181001130019. The reversal of 181001130001 is 100031100181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 181001130001 - 2²⁷ = 180866912273 is a prime.

It is a super-2 number, since 2×181001130001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181001130041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326040 + ... + 1456153.

It is an arithmetic number, because the mean of its divisors is an integer number (22986486828).

Almost surely, 2^181001130001 is an apocalyptic number.

It is an amenable number.

181001130001 is a deficient number, since it is larger than the sum of its proper divisors (2890764623).

181001130001 is an equidigital number, since it uses as much as digits as its factorization.

181001130001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783231.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 181001130001 its reverse (100031100181), we get a palindrome (281032230182).

The spelling of 181001130001 in words is "one hundred eighty-one billion, one million, one hundred thirty thousand, one".