401331300320 has 24 divisors (see below), whose sum is σ = 948145197384. Its totient is φ = 160532520064.

The previous prime is 401331300283. The next prime is 401331300329. The reversal of 401331300320 is 23003133104.

It is a super-2 number, since 2×401331300320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 401331300292 and 401331300301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401331300329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254160154 + ... + 1254160473.

It is an arithmetic number, because the mean of its divisors is an integer number (39506049891).

Almost surely, 2^401331300320 is an apocalyptic number.

401331300320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401331300320 is an abundant number, since it is smaller than the sum of its proper divisors (546813897064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401331300320 is a wasteful number, since it uses less digits than its factorization.

401331300320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508320642 (or 2508320634 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 401331300320 its reverse (23003133104), we get a palindrome (424334433424).

The spelling of 401331300320 in words is "four hundred one billion, three hundred thirty-one million, three hundred thousand, three hundred twenty".