401120321 has 16 divisors (see below), whose sum is σ = 495302400. Its totient is φ = 323588160.

The previous prime is 401120309. The next prime is 401120341. The reversal of 401120321 is 123021104.

It is not a de Polignac number, because 401120321 - 2¹⁰ = 401119297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401120296 and 401120305.

It is not an unprimeable number, because it can be changed into a prime (401120341) 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, 28565 + ... + 40226.

It is an arithmetic number, because the mean of its divisors is an integer number (30956400).

Almost surely, 2^401120321 is an apocalyptic number.

It is an amenable number.

401120321 is a deficient number, since it is larger than the sum of its proper divisors (94182079).

401120321 is an equidigital number, since it uses as much as digits as its factorization.

401120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68829 (or 68815 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 401120321 is about 20027.9884411790. The cubic root of 401120321 is about 737.4935414928.

Adding to 401120321 its reverse (123021104), we get a palindrome (524141425).

The spelling of 401120321 in words is "four hundred one million, one hundred twenty thousand, three hundred twenty-one".