401216056031 has 8 divisors (see below), whose sum is σ = 458538746400. Its totient is φ = 343894893408.

The previous prime is 401216056019. The next prime is 401216056049. The reversal of 401216056031 is 130650612104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401216056031 - 2³⁴ = 384036186847 is a prime.

It is a super-3 number, since 3×401216056031³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 401216055985 and 401216056003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401216056001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250685 + ... + 930201.

It is an arithmetic number, because the mean of its divisors is an integer number (57317343300).

Almost surely, 2^401216056031 is an apocalyptic number.

401216056031 is a deficient number, since it is larger than the sum of its proper divisors (57322690369).

401216056031 is an equidigital number, since it uses as much as digits as its factorization.

401216056031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763873.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 401216056031 its reverse (130650612104), we get a palindrome (531866668135).

The spelling of 401216056031 in words is "four hundred one billion, two hundred sixteen million, fifty-six thousand, thirty-one".