401142011421 has 8 divisors (see below), whose sum is σ = 536598218464. Its totient is φ = 266556906000.

The previous prime is 401142011381. The next prime is 401142011447. The reversal of 401142011421 is 124110241104.

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

It is not a de Polignac number, because 401142011421 - 2⁶ = 401142011357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401142011461) 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, 217774330 + ... + 217776171.

It is an arithmetic number, because the mean of its divisors is an integer number (67074777308).

Almost surely, 2^401142011421 is an apocalyptic number.

It is an amenable number.

401142011421 is a deficient number, since it is larger than the sum of its proper divisors (135456207043).

401142011421 is a wasteful number, since it uses less digits than its factorization.

401142011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435550811.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 401142011421 its reverse (124110241104), we get a palindrome (525252252525).

The spelling of 401142011421 in words is "four hundred one billion, one hundred forty-two million, eleven thousand, four hundred twenty-one".