401142321421 has 16 divisors (see below), whose sum is σ = 428392056960. Its totient is φ = 374511029760.

The previous prime is 401142321413. The next prime is 401142321449. The reversal of 401142321421 is 124123241104.

It is a cyclic number.

It is not a de Polignac number, because 401142321421 - 2³ = 401142321413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401142321401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3033925 + ... + 3163381.

It is an arithmetic number, because the mean of its divisors is an integer number (26774503560).

Almost surely, 2^401142321421 is an apocalyptic number.

It is an amenable number.

401142321421 is a deficient number, since it is larger than the sum of its proper divisors (27249735539).

401142321421 is a wasteful number, since it uses less digits than its factorization.

401142321421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131844.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 401142321421 its reverse (124123241104), we get a palindrome (525265562525).

The spelling of 401142321421 in words is "four hundred one billion, one hundred forty-two million, three hundred twenty-one thousand, four hundred twenty-one".