400113204202001 has 4 divisors (see below), whose sum is σ = 400236278091504. Its totient is φ = 399990130312500.

The previous prime is 400113204201947. The next prime is 400113204202057. The reversal of 400113204202001 is 100202402311004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400113204202001 - 2³⁰ = 400112130460177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400113204202081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61536939875 + ... + 61536946376.

It is an arithmetic number, because the mean of its divisors is an integer number (100059069522876).

Almost surely, 2^{400113204202001} is an apocalyptic number.

It is an amenable number.

400113204202001 is a deficient number, since it is larger than the sum of its proper divisors (123073889503).

400113204202001 is a wasteful number, since it uses less digits than its factorization.

400113204202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123073889502.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 400113204202001 its reverse (100202402311004), we get a palindrome (500315606513005).

The spelling of 400113204202001 in words is "four hundred trillion, one hundred thirteen billion, two hundred four million, two hundred two thousand, one".