401643000231 has 32 divisors (see below), whose sum is σ = 588922583040. Its totient is φ = 241457205600.

The previous prime is 401643000221. The next prime is 401643000233. The reversal of 401643000231 is 132000346104.

It is not a de Polignac number, because 401643000231 - 2¹⁸ = 401642738087 is a prime.

It is a super-2 number, since 2×401643000231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401643000233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10611366 + ... + 10649148.

It is an arithmetic number, because the mean of its divisors is an integer number (18403830720).

Almost surely, 2^401643000231 is an apocalyptic number.

401643000231 is a deficient number, since it is larger than the sum of its proper divisors (187279582809).

401643000231 is a wasteful number, since it uses less digits than its factorization.

401643000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40387.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 401643000231 its reverse (132000346104), we get a palindrome (533643346335).

The spelling of 401643000231 in words is "four hundred one billion, six hundred forty-three million, two hundred thirty-one", and thus it is an aban number.