401123101 has 4 divisors (see below), whose sum is σ = 406618012. Its totient is φ = 395628192.

The previous prime is 401123077. The next prime is 401123113. The reversal of 401123101 is 101321104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271755225 + 129367876 = 16485^2 + 11374^2 .

It is a cyclic number.

It is not a de Polignac number, because 401123101 - 2¹¹ = 401121053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401123201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747346 + ... + 2747491.

It is an arithmetic number, because the mean of its divisors is an integer number (101654503).

Almost surely, 2^401123101 is an apocalyptic number.

It is an amenable number.

401123101 is a deficient number, since it is larger than the sum of its proper divisors (5494911).

401123101 is an equidigital number, since it uses as much as digits as its factorization.

401123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494910.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 401123101 is about 20028.0578439348. The cubic root of 401123101 is about 737.4952452437.

Adding to 401123101 its reverse (101321104), we get a palindrome (502444205).

The spelling of 401123101 in words is "four hundred one million, one hundred twenty-three thousand, one hundred one".