401000213421 has 24 divisors (see below), whose sum is σ = 579758081760. Its totient is φ = 267086435616.

The previous prime is 401000213413. The next prime is 401000213441. The reversal of 401000213421 is 124312000104.

It is not a de Polignac number, because 401000213421 - 2³ = 401000213413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 401000213394 and 401000213403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401000213441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79262190 + ... + 79267248.

It is an arithmetic number, because the mean of its divisors is an integer number (24156586740).

Almost surely, 2^401000213421 is an apocalyptic number.

It is an amenable number.

401000213421 is a deficient number, since it is larger than the sum of its proper divisors (178757868339).

401000213421 is a wasteful number, since it uses less digits than its factorization.

401000213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11465 (or 11462 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 401000213421 its reverse (124312000104), we get a palindrome (525312213525).

The spelling of 401000213421 in words is "four hundred one billion, two hundred thirteen thousand, four hundred twenty-one".