401331323311343 has 16 divisors (see below), whose sum is σ = 415285322669280. Its totient is φ = 387385003923456.

The previous prime is 401331323311327. The next prime is 401331323311393. The reversal of 401331323311343 is 343113323133104.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 401331323311343 - 2⁴ = 401331323311327 is a prime.

It is a super-2 number, since 2×401331323311343² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401331323311393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1703492171 + ... + 1703727747.

It is an arithmetic number, because the mean of its divisors is an integer number (25955332666830).

Almost surely, 2^{401331323311343} is an apocalyptic number.

401331323311343 is a deficient number, since it is larger than the sum of its proper divisors (13953999357937).

401331323311343 is a wasteful number, since it uses less digits than its factorization.

401331323311343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251626.

The product of its (nonzero) digits is 69984, while the sum is 35.

Adding to 401331323311343 its reverse (343113323133104), we get a palindrome (744444646444447).

The spelling of 401331323311343 in words is "four hundred one trillion, three hundred thirty-one billion, three hundred twenty-three million, three hundred eleven thousand, three hundred forty-three".