401421000243 has 8 divisors (see below), whose sum is σ = 535236818368. Its totient is φ = 267609591144.

The previous prime is 401421000209. The next prime is 401421000259. The reversal of 401421000243 is 342000124104.

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

It is not a de Polignac number, because 401421000243 - 2³³ = 392831065651 is a prime.

It is a super-2 number, since 2×401421000243² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401421000283) 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, 883621 + ... + 1258422.

It is an arithmetic number, because the mean of its divisors is an integer number (66904602296).

Almost surely, 2^401421000243 is an apocalyptic number.

401421000243 is a deficient number, since it is larger than the sum of its proper divisors (133815818125).

401421000243 is a wasteful number, since it uses less digits than its factorization.

401421000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204513.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 401421000243 its reverse (342000124104), we get a palindrome (743421124347).

The spelling of 401421000243 in words is "four hundred one billion, four hundred twenty-one million, two hundred forty-three", and thus it is an aban number.