401312351 has 12 divisors (see below), whose sum is σ = 448351512. Its totient is φ = 358842000.

The previous prime is 401312347. The next prime is 401312363. The reversal of 401312351 is 153213104.

It is not a de Polignac number, because 401312351 - 2² = 401312347 is a prime.

It is a super-2 number, since 2×401312351² = 322103206130294402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401312311) 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 11 ways as a sum of consecutive naturals, for example, 19805 + ... + 34566.

It is an arithmetic number, because the mean of its divisors is an integer number (37362626).

Almost surely, 2^401312351 is an apocalyptic number.

401312351 is a deficient number, since it is larger than the sum of its proper divisors (47039161).

401312351 is a wasteful number, since it uses less digits than its factorization.

401312351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54454 (or 54443 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 401312351 is about 20032.7819086616. The cubic root of 401312351 is about 737.6112105011.

Adding to 401312351 its reverse (153213104), we get a palindrome (554525455).

The spelling of 401312351 in words is "four hundred one million, three hundred twelve thousand, three hundred fifty-one".