404123211401 has 16 divisors (see below), whose sum is σ = 502030859904. Its totient is φ = 316757551104.

The previous prime is 404123211391. The next prime is 404123211451. The reversal of 404123211401 is 104112321404.

It is a cyclic number.

It is not a de Polignac number, because 404123211401 - 2³⁸ = 129245304457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404123211451) 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, 20742200 + ... + 20761673.

It is an arithmetic number, because the mean of its divisors is an integer number (31376928744).

Almost surely, 2^404123211401 is an apocalyptic number.

It is an amenable number.

404123211401 is a deficient number, since it is larger than the sum of its proper divisors (97907648503).

404123211401 is a wasteful number, since it uses less digits than its factorization.

404123211401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41504000.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 404123211401 its reverse (104112321404), we get a palindrome (508235532805).

The spelling of 404123211401 in words is "four hundred four billion, one hundred twenty-three million, two hundred eleven thousand, four hundred one".