401013131443 has 8 divisors (see below), whose sum is σ = 418548764448. Its totient is φ = 383485855104.

The previous prime is 401013131399. The next prime is 401013131459. The reversal of 401013131443 is 344131310104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-401013131443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401013131143) 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 7 ways as a sum of consecutive naturals, for example, 1990996 + ... + 2183137.

It is an arithmetic number, because the mean of its divisors is an integer number (52318595556).

Almost surely, 2^401013131443 is an apocalyptic number.

401013131443 is a deficient number, since it is larger than the sum of its proper divisors (17535633005).

401013131443 is a wasteful number, since it uses less digits than its factorization.

401013131443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178333.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 401013131443 its reverse (344131310104), we get a palindrome (745144441547).

The spelling of 401013131443 in words is "four hundred one billion, thirteen million, one hundred thirty-one thousand, four hundred forty-three".