1005601100401 has 4 divisors (see below), whose sum is σ = 1022086364404. Its totient is φ = 989115836400.

The previous prime is 1005601100353. The next prime is 1005601100407. The reversal of 1005601100401 is 1040011065001.

1005601100401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 422661215376 + 582939885025 = 650124^2 + 763505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005601100401 - 2⁹ = 1005601099889 is a prime.

It is a super-2 number, since 2×1005601100401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005601100407) 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, 8242631910 + ... + 8242632031.

It is an arithmetic number, because the mean of its divisors is an integer number (255521591101).

Almost surely, 2^{1005601100401} is an apocalyptic number.

It is an amenable number.

1005601100401 is a deficient number, since it is larger than the sum of its proper divisors (16485264003).

1005601100401 is an equidigital number, since it uses as much as digits as its factorization.

1005601100401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16485264002.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 1005601100401 its reverse (1040011065001), we get a palindrome (2045612165402).

The spelling of 1005601100401 in words is "one trillion, five billion, six hundred one million, one hundred thousand, four hundred one".