401320051 has 8 divisors (see below), whose sum is σ = 437976000. Its totient is φ = 364692840.

The previous prime is 401320043. The next prime is 401320057. The reversal of 401320051 is 150023104.

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 401320051 - 2³ = 401320043 is a prime.

It is a super-2 number, since 2×401320051² = 322115566669285202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401320057) 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, 30760 + ... + 41818.

It is an arithmetic number, because the mean of its divisors is an integer number (54747000).

Almost surely, 2^401320051 is an apocalyptic number.

401320051 is a deficient number, since it is larger than the sum of its proper divisors (36655949).

401320051 is a wasteful number, since it uses less digits than its factorization.

401320051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14369.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 401320051 is about 20032.9740927302. The cubic root of 401320051 is about 737.6159279986.

Adding to 401320051 its reverse (150023104), we get a palindrome (551343155).

The spelling of 401320051 in words is "four hundred one million, three hundred twenty thousand, fifty-one".