401121301005 has 24 divisors (see below), whose sum is σ = 695312818200. Its totient is φ = 213920315520.

The previous prime is 401121301003. The next prime is 401121301043. The reversal of 401121301005 is 500103121104.

It can be written as a sum of positive squares in 4 ways, for example, as 36259395561 + 364861905444 = 190419^2 + 604038^2 .

It is not a de Polignac number, because 401121301005 - 2¹ = 401121301003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401121301003) 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, 691771 + ... + 1131719.

It is an arithmetic number, because the mean of its divisors is an integer number (28971367425).

Almost surely, 2^401121301005 is an apocalyptic number.

401121301005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

401121301005 is a deficient number, since it is larger than the sum of its proper divisors (294191517195).

401121301005 is a wasteful number, since it uses less digits than its factorization.

401121301005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460221 (or 460218 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 401121301005 its reverse (500103121104), we get a palindrome (901224422109).

The spelling of 401121301005 in words is "four hundred one billion, one hundred twenty-one million, three hundred one thousand, five".