401320120201 has 64 divisors (see below), whose sum is σ = 544757262336. Its totient is φ = 285506726400.

The previous prime is 401320120177. The next prime is 401320120207. The reversal of 401320120201 is 102021023104.

It is not a de Polignac number, because 401320120201 - 2¹⁹ = 401319595913 is a prime.

It is a super-2 number, since 2×401320120201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401320120207) 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 63 ways as a sum of consecutive naturals, for example, 34421565 + ... + 34433221.

It is an arithmetic number, because the mean of its divisors is an integer number (8511832224).

Almost surely, 2^401320120201 is an apocalyptic number.

It is an amenable number.

401320120201 is a deficient number, since it is larger than the sum of its proper divisors (143437142135).

401320120201 is a wasteful number, since it uses less digits than its factorization.

401320120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12062.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 401320120201 its reverse (102021023104), we get a palindrome (503341143305).

The spelling of 401320120201 in words is "four hundred one billion, three hundred twenty million, one hundred twenty thousand, two hundred one".