1000403440401 has 16 divisors (see below), whose sum is σ = 1362469996800. Its totient is φ = 652640807808.

The previous prime is 1000403440391. The next prime is 1000403440429. The reversal of 1000403440401 is 1040443040001.

It is not a de Polignac number, because 1000403440401 - 2²⁶ = 1000336331537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000403440471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318045 + ... + 1449813.

It is an arithmetic number, because the mean of its divisors is an integer number (85154374800).

Almost surely, 2^{1000403440401} is an apocalyptic number.

It is an amenable number.

1000403440401 is a deficient number, since it is larger than the sum of its proper divisors (362066556399).

1000403440401 is a wasteful number, since it uses less digits than its factorization.

1000403440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138088.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1000403440401 its reverse (1040443040001), we get a palindrome (2040846480402).

The spelling of 1000403440401 in words is "one trillion, four hundred three million, four hundred forty thousand, four hundred one".